I can think of far worse, like N. Korea and Pakistan.
The rub of it is, the ones who are or were in prison are Not the ones to worry about It's the ones not Caught, Yet. Like Cruz. No serial killer was ever denied a weapon because of a past crime. Yet those with records are denied it and jobs.
Most of whom you will meet here are Nice People. If you look for trouble, you will Find It. I have partied with the Hells Angels, Huns, No problem. Just a good time. Treat others as you'd like to be treated and you will make friends, anywhere. Look down your nose and you won't even get along in England or Canada or wherever you call home.
Rent a Harley or Indian and go to Sturgis in August and party.They will treat you like Family if you ride in.
I have met Many foreign visitors who Enjoyed a vacation in the 'States. A few emigrated. Just like I'd love to visit Europe or Australia, I'd just remember it's Their country and play the guest.