Well, you are in coastal Oregon ........and I'm not.
I don't wear such t shirts as you show, but American flags and NRA hats are the common norm here.
I graduated from UW in Seattle years ago, and I noticed how bigoted and intolerant the "progressive liberals" were of any ideas other than their own. I parked my car off campus because they were vandalizing any with military base access stickers on them parked on campus.

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Science plus Art