I get a feeling Seamus L would have no issue with mass deportation, or perhaps internment camps for Muslims. Of course that is hardly an original idea.
ETA: I’m not trying to pick on Seamus personally. I just find it very ironic that Catholics, who used to be viewed with suspicion, or at least as fundamentally not “compatible with real Americans” even 100 years ago are now culturally assimilated enough, to be making judgments that those of another religion are also inherently “un American” and can never be culturally assimilated.
I guess this the whole “those who forget history are condemned to repeat it” thing.