Being Muslim, I understand a lot of the fanaticism and conflict you speak of.
However, as our Prophet Muhammad (peace and blessings be upon him) stated in the
Hadith:
Have mercy on people so you may receive mercy; forgive people so you may be forgiven.
Do not commit yourself to lengthy discussions of religion—such talk only succeeds in making religion a complex and confused matter. God has made religion easy and simple.
The strongest among you is he who controls his anger.
If your family is very devoted to Islam as taught within orthodox or exoteric tradition, then let them be. Understand that people without any religion are barbaric, and to strip them of whatever values they have, as superficial as they may be, would be to their detriment.
We must always respect the beliefs and religion of our neighbors. As Samael Aun Weor (peace and blessings be upon him) stated:
We violate the law of the tranquil heart when we criticize others. -The Aquarian Message
The truth is, we practice islam (submission to divinity) when we learn to transform with gladness the unpleasant manifestations or impressions of our fellow men and women.
Peace is born in our heart when we know how to take the place of others.
If you are accused, receive with gladness the unpleasant impressions of your fellows, for they truly are like a wish-fulfilling jewel, teaching you non-identification with all that keeps us away from Allah (may He be praised and exalted)!
Bless those who curse you. Be happy in body, mind, and soul. Transform your pride and anger into humility and serenity, so that the light of the Lord may inspire others.
The need to convert others to one's beliefs is a terrible fanaticism we all carry within. We follow the law of the tranquil heart when we learn to respect, with sincerity, the religion and beliefs of others, no matter how subjective, corrupt, and degenerate they are.