We have family in the US so we visit regularly. With increasing age we are likely to need to visit more and possibly at short notice, so I make sure I have a current ESTA in case of any delay (not that I've ever had an ESTA take more than 24 hours, usually less than 2).
I last applied for an ESTA last month. The social media question was voluntary and I left it blank.
Although sometimes the officials at immigration can be a bit abrupt, I have never had any problem with rudeness or aggression, which I cannot say about every country I have visited. I smile and am polite whenever dealing with officialdom anywhere. The queues at airports can sometimes be quite long, so I have plenty of time to observe what's going on and I have never seen anyone, of any appearance, be treated aggressively, except when they were hostile to the official first. I've never had my passport thrown at me at the US border as I have in France.
I have only had reason to feel uneasy in the US when I've done something that would make me feel equally uneasy in any country, such as wander into an 'edgy' area. Mostly people are friendly, welcoming and ready to chat to someone with a 'funny' accent!
I mainly visit two states, both 'purple'. I find, from a very small and (I'm sure) non-representative sample, that poorer people tend to be more pro-Trump, saying that things like the cost of living and gangs of non-english-speaking men hanging around threateningly, have improved under him, while some wealthier people are less supportive of him, for a variety of reasons.