Poe's law strikes again. I'm unsure if you're being sarcastic or not. I think the consequences of our actions will find us one way or another regardless of immigration policy. That's not an argument against screening, but for policy reform.

The government has a responsibility to minimize the consequences on its own people, everyone else be damned. Of course the US needs screening for immigrants, and I don’t know anyone reasonable who’d argue otherwise. Zero crime among immigrants is unrealistic, but society should make the tradeoff there based on economic and social factors instead of feeling any kind of moral obligation wrt. immigration.

If I can avoid dealing with the ruinous consequences of governments that existed before I was born, I absolutely will.