Reading between the the lines, it sounds like you are getting into disagreements with family and you feel that you "know better".
There are a few things to consider: the first is that many things are not as black-and-white as you might be lead to believe (a good example of this is american politics, which tends to be boiled down to popular talking points that get parroted ad nauseam, but those often focus on rhetorics more than matters of day-to-day practicality). One thing I try to do is to try to put myself in the other person's shoes or play devil's advocate with myself. It's very easy to e.g. scorn religiousness, but much harder and humbling to understand where they come from and come to terms with the fact that some people are just fundamentally different from you. Through actively seeking a "grand unifying theory" of religion, I've come to an answer that is both religiously compatible and scientifically compatible, which means I no longer feel the need to convert people to "my" side.
This ties into the second thing: what practical purpose is there to discuss these topics? We live in a society built on specialization; if you are interested in complex niche topics as a means to personal fulfillment, there are appropriate places to discuss them. Generally speaking, the intersection between those circles and your family/friend circle may be non-existent.
Part of living in a society is understanding others' boundaries and conducting yourself appropriately in a given context (i.e. there's nothing wrong with the guys wanting to watch SuperBowl instead of doing a chess party, and there's nothing inherently inferior about family wanting to spend time on superficial travel/food photos instead of engaging in philosophical discussions about Monet). Intellectual pursuit is not the only goal in life, and that's ok.
And third, live and let live. There's great wisdom in various religions about what things are under your control, what things are not, and how being cognizant of how those differences can affect your mental well being. You cannot control how others think, but you can control your expectations, your goals and how you channel your energy towards achieving those goals.