Yes I've said this to my mother before and it made her angry, but my sense of the deep anti-Islamic "vibe" in (at least) the evangelical Christian world is that

Yes I've said this to my mother before and it made her angry, but my sense of the deep anti-Islamic "vibe" in (at least) the evangelical Christian world is that it is more about them being competition than some ethical or philosophical fault. "Shariah law" is offensive not because it is alien to "western society" (because its not-liberal or whatever) but because the traditionalist/conservative/strict morality (and destruction of church/state division) it wants to impose is competition for the one they want to impose. In any case, just like Christianity, Islam has a spectrum of approaches of reading such morality passages.