You have been offered a lot of good advice here. What you do with it is entirely up to you.
You are the one who made an issue of tats, politics, and pants position, and you did it right off the bat. I had some good advice once upon a time... "Choose carefully the mountain you wish to die on." I wasn't smart enough to heed it at the time, and have had the opportunity to reflect upon that numerous times in my life.
Just my opinion, but it seems to me as if you have an attitude...and trust me, that will always come shinin' through. Yeah, I know of what I speak
And others will notice, just as (if you care to admit it) was your intent all along.
Being a young, angry non-conformist worked spectacularly for James Dean and a few others (and nearly all of them were/are in the music industry).
Anywhere else, especially retail? I'm hard pressed to offer one example...maybe you'll be the first. If I were a betting man, I'd bet otherwise.
Please think long and hard before you commit your family and your future to what is (at your present trajectory) a steep uphill climb.
If you have the basic (gunsmithing/salesmanship/people) skills, then long sleeve shirts are cheap, and a modicum of humility/courtesy are not an unreasonable price to pay for success. For evidence, check some of the best-regarded names in the business. They are also some of the most humble, low-key guys you will ever want to meet.
Seriously, I wish you the best of luck. Don't let your ego trip up your common sense. Been there, done that.