It's a big topic, but I will just say a few points. In most cases, people with whom your views more align with, will seem more "open" to new ideas you present. This is for 2 reasons: 1, you two already see each other as allies, and 2, your world views align better, thus your "other" ideas are also more likely to align. Disagreement is not the same as "not open." In fact, unwillingness to debate or discuss is actually the opposite of open, but in many cases, just because a person disagrees, they are seen as "close minded." Many people on this "indoctrination" bandwagon don't seem to care when the "indoctrination" is teaching something they agree with (for example, religion) Many religions' entire basis is that they are right and everyone else is wrong, this is dogmatic on the base level. Compare to scientific inquiry, which by definition is based on observable experimentation and conclusions can change. But for a theist, "God exists" and many other things are never debatable and can never change. I am not even sure what qualifies as "indoctrination." It seems like for many people, this is the new "I am a free thinker" argument where instead of debating the issue, you just attack the person and say they have been "indoctrinated." There is also a hypocritical approach to this. Basically, one example of this is with stuff like "Christian values." When everyone largely aligns with Christian values, a Christian might say, "This community has good moral character." But if everyone largely aligns with other POV, then a Christian might say, "Godlessness is destroying this community." Basically, it's not about "indoctrination" or how many people have that view, it's about whether one AGREES with the views that determines how those views are interpreted. The left is often accused of using their "power" to "suppress" speech, but I never see the same outrage when the right does it (for example, the Delta Airlines/NRA thing, or Tennessee reducing Memphis' budget for taking down Confederate statues). Instead, these actions are hailed as righteous. My wife is a science teacher in public school, and in her courses she teaches reading data, graphing, analyzing arguments, etc. There is an entire section devoted to plate tectonics (a controversial idea back in the day) whre the students get to play different sides of the argument. She also tutors, mostly homeschooled children. So we have a lot of experience on both sides of the aisle. Homeschooled children in both CA and AZ (where we have lived) are overwhelming very Christian. Perhaps it's changing, but it's slow if it is. Just because someone isn't accepting of ONE of your viewpoints, doesn't make them intolerant of everything. In fact, it could be that they are open to a lot, just not that one. The reality is that most people have some things they aren't going to budge on, whether it is "the planet is round" or "God exists" but the fact that people have these positions doesn't make them close minded by default.