Ah, the delicious irony of attacking certain types of speech and ideas as "attacks on speech and ideas". What they are doing and what you are doing are no different; it's all just politics. There's not even anything new about what's happening today. How do you think people's minds were changed on all those "controversial" topics you cite? A whole lot of social pressure. You don't get to make lofty statements about free speech, and then turn around and grumble that other people's speech somehow isn't "playing fair".