I think you are pattern matching too hard on what I’m saying.

A population being, on average, substantially less able to comply with social rules (including murder etc) is a perfectly valid reason to bar them from entering (which I mentioned in my original comment). But let’s be realistic about what the problem is. Rhetoric about them being “bad people” essentially does get a knee jerk reaction from progressives, and I’m suggesting we focus on a different angle (which is apparently so compatible with the progressive framing that readers are confused).