US famously rejected a boat of 900 jewish and other German refugees cause 1 dude lied (these people would be sent back and 40% of them would later die in the holocaust). We were terrified of foreign spies, which is an attitude that culminated in it internment of the Japanese. We were offered Jewsih refugees many times, including like 20,000 children, we rejected them.

Right on track, the US is deporting Russian dissidents back to Russia, where they’ll likely be tortured. Thank a lot, republicans! Really helping out your pal putin.