About tolerance, I think that either you may be mistaken or something has been lost in communication between us.
I have a sister as well and she tries to shove her opinions on me as well. That doesn't mean I have to tolerate here shoving them in my face. I can just ignore her and walk away. However, I generally accept her opinions because, even though I usually don't agree with her, I can see where she's coming from and not just tolerate her incessant opinion-shoving.
Tolerance usually means tolerating something you do not like or think is anoying, like (BTW I don't believe in this sentence and I don't think you will, but I'm just giving an example of your theory being applied):
Black people annoy me, but I still should tolerate them even though I do not accept them as my equals.