They are not the fucking same, I don't have to accept gay marriage and homosexual behavior in order to be tolerant of it. If I don't harass, bother, discriminate, or physically assault anyone and treat them with respect when I do have to interact with them I am being tolerant. Get over it and stop trying to force people to accept your bullshit.
What are Gays doing to force people to accept their "bullshit"?
The same reason that heterosexuals do it, I suppose.