what you wrote here very much spoke to me, because i come from a religious family and community but we have here people who drink, women who don't wear hijab, etc and we also have the other side of religious people but no one is forcing anything on anyone, and we all kind of live in peace. which is great and everything and i can live with that, but i realised that it totally contradicts islam, so even though my community is a very good living example of good and liberal muslims, generally their not really practicing islam, and if they were there would be no harmony and peace between us the community and between us and the non muslim majority in my country.

and like you i come from a well educated family, that are involved with non muslims on daily basis, and they don't have an ounce of hatred against anybody, even my mom who is very believing, who prays, fast, cover up, has good lesbian friends and i remember as a kid i asked her- isn't being gay haram? and she just anwered me "yes, but they are very good people and were friends". i think that's why i dont have this anti feeling against muslims, because i see my family and community, and think they believe in god and islam, and they live by very beautiful ideas of god and religion. i think overall what made me kind of lose my faith in islam is that i don't get religion and rules anymore, but i do beleve in god, and i wouldn't want to lose my faith in god, because that faith keeps me close to my family and what i was brought upon.

so my advice to you would be don't confront to your dad abput religion, because he seems to be happy with his religion and he has a very innocent idea of it, and pointing out to him everything that's bad or illogical in islam\religion would just mess him up and ruin his little bubble he lives in, its just unnecessary drama in our case. but obviously you don't have to agree with my advice, just let time pass by and decide what are you going to do, don't rush into things hence it's a very delicate situation. good luck!