And so you use force and violence on that person. What other groups are "guilty by association" that we should curtail their speech because some of their members have committed acts of violence in the name of their movement? Antifa? Communists? Environmentalists? BLM? Socialists? Anarchists? Union organizers? Can you confidently assert that you belong to no groups such that if the political winds changed you'd be comfortable allowing your opponents the authority to censor your group's speech if any members commit violence?