I'm surprised Sam said this. However I do applaud him for it.

The point being is you can argue against speech you disagree with. "Gay people are evil" can be met with "That's ridiculous, and most people find that incorrect and offensive." And leave it at that.

Shutting down speech is the problem. Why? Because once you've made it acceptable to shutdown speech that is offensive, suddenly the definition of offensive gets expanded and it's used to bludgeon any ideas that don't align with current thinking. That's dangerous.