Perception is more important than actual risk to most people. This is especially poignant considering you don't have to visit the US on vacation and can just go somewhere else.
Let me ask you this, if you knew a nation was at war and losing about 50k citizens every year to said war would you want to visit? I think most sane people would say no.
I am reminded of the UK citizen who just went to visit her father in Texas who shot her after explaining it would be okay for Trump to rape her because he has other daughters.
I mean I am sorry, but the US is now worse than backwards Middle Eastern countries that are also statistically pretty damned safe. Doesn't mean people want to visit either though.