> kick out the people they're actually worried about without invoking legal process for each one specifically

Why are we assuming either/both good faith and competence here? Is there anything about the policymaking of this administration that lends credence to that hypothesis? Are there pre-existing policy proposals you're imagining that have weighed pros and cons about this? Existing abuses you're imagining that this curtails?

No, let's be real here: this is yet another impulsive idea that some crank sold the president/cabinet on.

> Why are we assuming either/both good faith and competence here

There is obviously a breakdown in either communication or understanding here. I have assumed neither good faith nor competence. On the contrary, the strategy I supposed above would be in bad faith and a symptom of incompetence.

Deporting researchers from every country to make it look like they aren't ethnically targetting people is in bad faith, and resorting to such measures instead of simply identifying and deporting the problematic individuals demonstrates their incompetence.