Every local Facebook group I am part of has, at least, one post a week where (and it's all women in these groups) someone's house was robbed, or someone was home and they came knocking aggressively at the door to see if someone was home to rob, etc. to warn others to be prepared and vigilant. Again, they are scared. They are even saying they don't like not feeling safe in their own homes. Hopefully, that translates into votes.
This isn’t about not letting in immigrants or being “nativists”.
This is about the recognition that our enemies our using immigrants as a weapon against us, and we are ill-equipped to fight it.
When immigrants went through Ellis Island they were examined, and quarantined, and if something in their background indicated that they were a subversive, they were not let in. We have no such processes in place.