You are playing coy as to the scope and influence that are exerted however. I have a beard but I don't have someone with tacit authority swinging by with a ruler to check it's length.
Off the top of your head name me one predominately Islamic led country and any female luminaries, political, or religious leaders. Would you want your daughter to live in any?
Do you want your children to live in a theocracy, be it Christian, Muslim or any other religion? I don’t.
The Christian Nationalists wants to establish a Christian (their version, of course, as well as White) theocracy, that is, a nation where the church and the state is the same. Along comes the oppression of non-Christians, including Christians of different denominations. You can guess what happens with gays and lesbians.
What protects you now is your Constitution and laws, for now, as that is only a piece of paper unless people are willing to uphold it.
The Christian Nationalists are a tiny minority but so are Islamists.