re: 3 weeks in the USA.

You came onto an American message board discussing a UK topic, disagreed with the posters and then started ranting about guns.

Shocking that people weren't pleasant toward you.

BTW, this isn't real life, and in the places you'd go, even in the south, you'd find plenty of people praising how "enlightened" the UK/Europe is. The culture wars are being fought about on message boards and Twitter, not in the streets or in bars.