it's the opposite.

It’s a clever way bigots came up with to try to show that we must allow people to be intolerant.

no. it's used by leftists to justify hating nazis, at least that's how it was used whenever I saw it in the wild.

Also if you look at the conclusion of the paradox, you'll see that it can't really be used any other way.

The paradox of tolerance states that if a society's practice of tolerance is inclusive of the intolerant, intolerance will ultimately dominate, eliminating the tolerant and the practice of tolerance with them. Karl Popper described it as the seemingly self-contradictory idea that, in order to maintain a tolerant society, the society must retain the right to be intolerant of intolerance.

https://en.wikipedia.org/wiki/Paradox_of_tolerance