First, you would have to explain how another person's marriage could be deemed "tyranny", since it harms no one and helps the families involved.<quoted text>
So now we have the tyranny of the minority.
Looking at the definitions of the word, there isn't a single one that seems to apply to gay people seeking the SAME right to legally marry that other couples already enjoy.
Now, gay people have been fighting tyranny themselves, by every definition of the word. And we are finally beating it.