Not to say all Muslims want to do violent things; but I believe the logic is that as a Jewish person, one should probably stay as far away from areas heavily populated by Muslim folks who may or may not have a couple brothers, cousins, and uncles who want to stone you to death or some other awful thing… As possible.
… You didn’t want to say that but you wanted to imply it, apparently – and to imply it so clearly that it’s difficult to imagine you intending anything else.