The opposite is the tyranny of the minority, which is even worse for a country as a whole.
I’m not sure what your point is here, though. There are three governmental branches in the US precisely because of this. If anything, the judicial branch is the one that presents a more imminent risk to minorities.
It's great, as long as you are in the majority. But if you're in the 49% (or less) category, then it is tyrannical and untenable. I don't know if you have a family, but if you do, do you put all of your decisions as a parent to a vote?