Don’t be so sure. A majority of the Muslims coming here will not want to turn the US into the places they left. And the maniacs? How many of them will actually vote?
That's always the hope, and what is presented. Still, there are frequent surveys showing that might not be true. For example, last fall there was one that claimed to show that 1 in 4 young American Muslims approved of suicide bombings under "certain circumstances."
I follow your train of thought ... one can hope that all the muslim detritus in the USA realize that registering to vote puts their contact data into a database, a database that will provide a good starting point for the round-up and deportation that is coming soon.