Americans have to accept them (the "regugees" from Syria) because Obama promised them they would soon rule Syria and do what ever they like there.
Now Obama-allies are dying in masses and lost any significant ground they had. Liberation of Aleppo especially - the Berlin of our times.
It was not muzzie against muzzie. It was Russia vs. the world. Again.
Fractions of US elite don't want to abandon the bad muzzies they committed themselves into.
Trump obviously don't want to continue Argentinization of USA. But look at the massive resistance he's facing.