The comment at issue did not use the phrase "kids in cages". That's you adding your personal color to a subject that you seem to object to being brought up in any manner at all. It looks like you're trying to build a straw-man or three, rather than justify the accusation that the comment in question is "entirely divorced from reality".
However, it's perfectly valid to construe Trump's comments as praise after the fact for the white supremacist rally, even though he specifically condemned the killing that resulted. Because Trump's assertions that there were "very fine people" on both sides and that there were many people on the alt-right side of that event who were not neo-Nazis or white nationalists are simply not credible claims. Trump was praising somebody. Even praising or encouraging the kind of white supremacists who don't get violent is abhorrent conduct on the part of the president, but the comment upthread exaggerated beyond this.
It certainly seems to me that Trump and many of his most high-profile supporters have been remarkably free from serious consequences despite behavior that has been scandalous to an unprecedented degree. Going by the political and societal norms of just a few decades ago, Trump's political career should have been dead and buried dozens of times over.