Then why did he aim it at only four American citizen-representatives who happen to have non-white skin, three of whom were born here and one, like his wife, who wasn't?
Why didn't he aim it at everyone who takes issue with the way he treats illegals as compared to past presidents?
The simple fact is that what he said is racist, and intentionally so. It's just his version of identity politics. You should be condemning it whole-heartedly, not half-assedly.
PS: the "it isn't what you say, but it's stupid" isn't a convincing defense when you still support the sentiment. It's as transparent as anything can be. Yes, it was racist. Yes, you know it. And the only reason you won't say it is you don't want to be seen to in some way undermine the far right's (I notice you changed your lean) claim that there is no racism outside of the literal KKK and that everything else is just liberals playing the race card; on the other hand, you want to try to retain the appearance of credibility, so you reach for some negative sounding word - stupid - and apply it to what Trump said.
That way you can embrace the sentiment, appear to criticize it, and further support the dishonest theme aimed at the left (of "race card" playing).
To be fair, he doesn't explicitly name anyone but it's 99% likely he's pointing to AOC, Omar, and Tliab, none of which are white and each tend to play the race card or "women of color" crap constantly when criticized (mainly AOC). I can't think of a white left-wing extremist congresswoman with social media followings like they do constantly bellowing lies intended to attack the president and our institutions like ICE. The tweet doesn't mention race or any kind of "white superiority" at all. Trump's tweet was stupidly, poorly constructed, and not beneficial to him in my opinion but it was not racist.
That far-left progressive group may or may not have said a lot of stupid things. It doesn't excuse telling them - 3 of whom were even born here, 1 naturalized - to go back to their countries in response to their criticism of his policies. When he only aims at a subset of people with a certain skin color, again a subset of a far larger group of people taking the same issue with those policies, it gives a pretty clear notion of what he's doing.
The reaction of Trumpists around DP further confirms it: it's universally being played as "oh look, the liberals are playing the race card again". That was the point.
Now you may or may not believe it, but I take great issue with the way identity politics is used by the Democrats. This, however, is identity politics on the right. (In fact, it looks like the Dems might just rip themselves apart and give Trump another 4 years with infighting between Biden and the farther left candidates, who are presently fighting over whether Biden is racist).
Trump's version of the right's identity politics, specifically. He could easily have attacked everyone who doesn't like his Big Beautiful Wall idea, who take issue with locking up and separating illegals when Obama's program - implemented in response to a court order - was working quite well. He didn't. He chose to focus on four politicians with non-white skin, three who were born here and one who like his wife was not but has become a citizen; with foreign-sounding names.
Want to admit it or not, but there is a very real xenophobia amongst his base, his supporters, his defenders. It's real. We only ended legal segregation several decades ago. Much more persisted. America has not come nearly as far as it tells itself, and you know....it's a certain 'side' that does most of the telling. I wonder why
PS: the stance that one has to literally say "I don't like X people" to be racist is absurd in the extreme. It's also transparent.
