What actions are being taken against legal immigrants and naturally born citizens?

Are you referring to getting arrested and released due to some suspicion (let’s say the suspicion is always fabricated for the sake of argument), or deported, or something else?

On due process, if someone accidentally gets a free flight to a foreign country, that totally sucks and they should be paid compensation, but let’s not pretend that deportation is the same as what authoritarian regimes typically do. Have people disappeared off the face of the earth? I think the Germans of the ‘30s would have a very different reputation if they had simply attempted to deport all the Jews…