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You want to bring "An admission that Islamic immigration should be curtailed to about zero."
Why then do the Islamics already on American soil escape your belief? If "Islamic immigration should be curtailed to about zero", aren't you admitting that there is a hazard from them?
Yes, the two positions are not incompatible. We brought them here. We are to blame ourselves, since this is a democratic republic. Blame our leaders, if you need to blame anyone!
The immigrants are just doing what nature tells them to do: going for the safest, most economically rewarding place on the planet they can find. They don't usually care about much else.