This one deplorable not being allowed to speak at one institution is about as small a problem as could possibly exist.
Like Jolly Penguin said. You're rewarding violence. It won't stop. It'll get worse. And the people using violence to suppress uncomfortable opinions are never the good guys.
There's another word for violence used in the employ of politics. Terrorism. Condoning this gives a free pass to KKK, ISIS and any other mob who picks violence instead of working on their arguments.
You're supporting terrorism and you think that's a good thing. I think it's pretty huge when that's become mainstream. History has taught us that publicly condoned political violence has a predicable outcome. I think this poem is apt:
"First they came for the Socialists, and I did not speak out—
Because I was not a Socialist.
Then they came for the Trade Unionists, and I did not speak out—
Because I was not a Trade Unionist.
Then they came for the Jews, and I did not speak out—
Because I was not a Jew.
Then they came for me—and there was no one left to speak for me."
This is the world you are creating. Enjoy