No one ever changed their opinion on account of being subjected to a lynch mob or encountering a glass ceiling imposed as a result of it.
If you disagree with B.E. then be an example to him of what you hope to achieve: mutual tolerance. Hounding does not achieve anything except increasing animosity all round.
I wonder, what part of "speaking up against a person who wants your rights taken away" disturbs you? As long as "not tolerating to intolerance" doesn't mean taking away his rights, I don't see the problem.
If you disagree with B.E. then be an example to him of what you hope to achieve: mutual tolerance. Hounding does not achieve anything except increasing animosity all round.