Well, I have two Muslim friends. One is not obesrvant, his brother is. The observant muslim is the only non-Jew I have found, who worried about my keeping the Shabat (when I aimed to convert, and he believed I was already Jewish and had to keep Shabat). One Friday night he called me to his shop to ask a question, and he warned me " Don't touch my door, there's an automatic electric bell, you may violate Shabat".
This town is sorrounded by hills, it's my custom to go up the southern hill every month to see the New Moon for the first time. When it is Ramadan, I pass by his house and tell him I have seen the moon. Of course it's not valid according to Islamic rules. The New Moon must be seen by TWO Muslims, not by ONE Noahide. But he is too old to go up the hills.
I agree with you Srbin. It's not good to insult a religion which praises the ONE. No matter if some of them are hipocrytes and violate nearly all the Noahide Laws.
I read a book wtritten by an Argetinian Jewish writer, Marcos Aguinis, about the Spanish Jews. A historic novel. One Jew of the novel said " The Christians persecuted us, and when Muslims came here (Spain), we took refuge in them. Later Muslims leaders tried to force us to convert, and we took refuge in Christian areas. Now the Christians are for us again. No refuege is safe. So we'd better abandon all refuges and give in Judaism". If had been there , I would have replied that the only safe refuge is Hashem!!!!
Shema Yisrael, Hashem Elokeinu, Hashem Echad!