Our First Amendment guarantees freedom of religion.  Christians don't have to work on Sundays or on Christmas if they so object.  Jews get holidays off without uproar.  Why do we make an exception about Muslim-Americans practicing their daily religious practices?  As for conservatives, I would never deny a person's right to believe political dogma of any kind.

(For the record, I do know what [radical] Islam teaches.  I also know that the Old Testament espouses abhorrent theology regarding women, gays, polygamy, slavery, incest, etc.  Best to look in the mirror before disparaging others.)