There's a quote from Niels Bohr that's helpful here, "The opposite of a trivial truth is trivially false; the opposite of a great truth is also true."
Where people go astray is mistaking the one for the other. If someone is wrong about a point of fact, it's easy (and potentially valuable) to correct them. If you find yourself wanting to correct someone on their ideology or value system (liberal vs. conservative, religious vs. atheist, tabs vs. spaces), you've set yourself an impossible task. All you can do is 1) agree on common facts, 2) make your opinion as clear as possible (in that order).
Where people go astray is mistaking the one for the other. If someone is wrong about a point of fact, it's easy (and potentially valuable) to correct them. If you find yourself wanting to correct someone on their ideology or value system (liberal vs. conservative, religious vs. atheist, tabs vs. spaces), you've set yourself an impossible task. All you can do is 1) agree on common facts, 2) make your opinion as clear as possible (in that order).