I watched some of the Fox news coverage on the meeting. It was persuasive that it was all Zelenskyy's fault. If all you watch is Fox news, then you are getting constant messages supporting one view point.
Boiled frog...
And it happens on both sides.
America First is an enticing slogan. Things have not been great in America in recent years due to global events. It's an easy sell. Make it black and white, whereas these things are nuanced.
We see it here too. "Tories responsible for all the bad things that happened recently" was seen frequently on threads whereas some Conservatives were responsible for some things (Some more than others) but there were global events influencing the economy here. It's easy to blame the ones we don't like. Keir might catch the flack for what is happening in the US at the next election.
Brexit was portrayed as a black and white issue... Emotionally enticing British freedom. Harder to argue for a nuanced position. Three word phrases are easier to sell.
Lots of the population don't have time to read round the subject. Lots of the population have been brought up to support one side or another. Lots of the population think they know better than those "thick" people over there. It's easy to be tribal and swayed by the current trend.