>My whole life, liberals were so proud to declare that they defend their opposition's right to speech even though they don't agree with it. When did this change

>My whole life, liberals were so proud to declare that they defend their opposition's right to speech even though they don't agree with it. When did this change? Most likely at some point the perception went from the danger being 'offense' or maybe delays in bettering society ("if we keep explaining how gay marriage hurts nobody and helps parts of society, people will eventually come around, just gotta keep arguing!") to the danger being literally people dying ("They killed 1 counter protester, injured 19 and marched past a synagogue, hurling anti-semitic slurs... What are they going to do next?")