Using words like "inherently less safe" upsets the people who like them.
They will rightly state that the pistol won't go bang unless the trigger is pulled.
What gets lost in the process is the importance and inadequacy of the training most striker fired pistol shooters receive.
What also gets lost is the need to fully understand the weaknesses and vulnerabilities in the system. Some striker fired shooters are very authoritarian in their learning and if someone says "it's the best" or some agency uses it who "only uses the best", they buy it hook line and sinker - often without considering or even understanding the differences in usage or the very important qualifiers that have to be made to use it safely.
For example, the Glock was designed for military and police applications where it would be carried primarily in an OWB duty holster. It might also be worth mentioning that the trend in Europe over most of the 20th century was to carry a semi-auto pistol with an empty chamber. Under this circumstances the safety system on the Glock is far less of an issue than is the case with concealed carry.
The Glock found a great deal of favor in the US among police departments where carrying with around in the chamber is almost universal, and currently has about a 65% market share, in large part because it was viewed as very easy to teach an officer familiar with a DA revolver to carry and shoot a Glock. That's both a blessing and a curse as the large number in use mean a larger number of NDs even if the level risk is low. Unfortunately, the strong market share in the LEO community also forms the basis of an ad popular logical fallacy that because it's the most popular it must be the best, must be safe, etc. with no consideration for differences in usage, training, etc between LEOs and concealed carry armed citizens.
Even within the LEO community there were (and still are) some important differences between DA revolvers and striker fired pistols. In order to experience a negligent discharge, an officer holstering a DA revolver will have to defeat the longer and heavier trigger pull of the DA revolver (usually around 12 pounds) and if he or she is doing it properly, he or she will be able to feel the hammer coming back as the trigger is pulled if it is obstructed by the officer's finger or some other intruding object. The former occurrence was and remains a potential issue for officers in the aftermath of a real world shoot, while the latter is much less likely in an OWB holster with a very rigid mouth on the holster, although some thumb snap designs can still pose problems.
In comparison, unless it's been ordered with a "New York" trigger, the trigger pull on striker fired designs like the Glock is both shorter and lighter than a DA revolver (even if the triggers on many striker fired designs have the general smoothness and feel of a Black and Decker staple gun). Striker fired pistols also lack an external hammer and won't give you the same tactile warning as a DA revolver that something is pressing the trigger.
That makes striker fired pistols much more vulnerable to an ND in the event of any intrusion inside the trigger guard, and potential intrusions are much more likely in concealed carry. That combination of vulnerabilities drives the requirement for a proper holster as well as proper training and understanding of the system's strengths and weaknesses.
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Yet ironically, you find products like the slide clips to allow a striker fired pistol to be carried without a holster inside the waist band by clipping it directly to the belt:
You also find minimalist holsters like the Versa Carry that support the pistol on the belt but offer basically no protection to the trigger while the weapon is being inserted into the waistband.
(Partial credit to Versa Carry - they sent me this one for evaluation several years ago, and my feedback was not positive. They did however incorporate some changes in the Versa Carry II that adds some partial protection to the trigger - but still not enough that I'd use one or recommend it.)
Under ideal conditions, where the shooter is taking his/her time and can visually observe the process, the risk of these systems is probably minimal. However, if you add in a little distraction or stress, the whole evolution can go south in a hurry.
The good news is that this particular vulnerability can be completely eliminated if the shooter carrying a striker fired pistol (or for that matter a DA revolver) will just use a holster that allows the pistol to be inserted in the holster before it's inserted inside the belt line.
This one from Wild Bill's Concealment has a CZ-75 Compact in it, but it's actually made for a Glock. The holster also uses two thicknesses of leather around a polymer insert that ensures the mouth of the holster stays open ensuring the mouth of the holster will never intrude inside the trigger guard.
In comparison, here is a soft leather IWB holster where it is possible for the lip of the holster to fold over and intrude on the trigger. However, it can still be used safely with a striker fired design as it has a clip that allows the holster to be removed from the belt before inserting the pistol in the holster while it's all held out in front of you in plane sight and pointed in a safe direction:
The bad news is that many of the true striker fired pistol fan boys are often very resistant to this kind of common sense approach to holstering a striker fired pistol due to the previously mentioned authoritarian approach to "knowing" things - absent any critical thinking of how it really applies to their situation. Alternatively some of them are just firmly convinced of their own infallibility and/or insist that the only thing that will fire a striker fired pistol if their own booger hook.
That very optimistic and very unrealistic thinking reflects a lack of knowledge and/or training that places them firmly in the category of an ND waiting for a time and place to happen.