I think it's just a small segment of terminally online people that are still hardcore supporters. Shamelessly killing an American citizen in retaliation for protesting and overtly alienating our long-time allies means it takes a much stronger firehose of rationalizations to keep fooling yourself that these things are about "immigration enforcement" or "national security". My direct observation: https://news.ycombinator.com/item?id=46642922

Not that I expect the latent supporters to ever really own up to their mistake (I mean, who even supported that Iraq War anyway? Must have been some liberal conspiracy). And of course the main question is still how do we actually immobilize and evict this piece of shit from the White House.