> Thank you for that very logical and level-headed response.
Is it? The regulations are literally changing every day, and he's asking for data on their effects? It sounds like a very unrealistic response to me.
Here is another response: news reports indicate USA borders crossing are going through rapid change, some sort of inflection point if you like. We don't know what the other side of that inflection point will look like as yet. There have been recent reports of unexplained wasted air fares, passport reject stamps and detention. The implications range from minor to very serious. A prudent person without an urgent reason to go to the USA should wait until the situation settles down, so a clear picture of the risks can emerge.
The downside of that is the situation is not settling down. Every day I wake up to unexpected political happenings in the USA, and it's been going on for near 100 days now with no end in sight. It might be a long wait.
Whenever I try to do this I usually get called out for being some kind of evil sympathizer. "Are you seriously defending <terrible thing>?!"
I guess even if one's response is as neutral as possible, people will still find a way to criticize you.