I never was so much worried about muggers, I just think this could be a high visibility target for terrorist or crazy mass murderers who typically like to target lots of defenseless people in no gun zones.

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- Change it back -

Lived down the road from the mouse for over a decade. Never felt the need to enrich the Disney Corp. with my $.
Why support those who would use that money to deprive me of my rights?

Probably in the part that says the purpose of the bill of rights is to restrict the government :
I didn't find where it said 2A trumps private property rights. I did find reference to common law trespass laws preceding the Constitution. For the most part, a property owner doesn't need a reason to throw you out. The sign is just a way of notifying you that carrying a gun on his property is a trespass.

Nowhere does anything official say that the rights of gun owners trump the rights of property owners. You carry past the sign, you are trespassing and rude. You don't have to go past the sign. Attendance is not mandatory.

Carrying past the sign in Florida is a third degree felony.

Exactly. This is a case where one can appropriately apply the old adage "Your right to swing your fist ends at the tip of my nose".

Private property owners have the right to say who/what is allowed on their property. If you don't like it, you have the right NOT to come onto their property. You DON'T have the right to ignore or otherwise violate THEIR rights - even if "they" are a corporation.

My employer prohibits me carrying on their property. If I disagree strongly enough I can get a job elsewhere, but I can't simply ignore their posted rules.

I once saw Minnie Mouse packing a nickel derringer in a garter belt.