Sadly, it's an American ideal that's fallen into disuse by most Americans. Thought police, Cancel Culture, political and cultural litmus tests for friendships and relationships..the demonization of those who believe differently.Unlike you Brits who will get thrown in jail of you speak against the monarchy we Americans aren't brainwashed to agree with everything our government does and are taught to be skeptical of our leaders.
I don't have to like what someone says but I'll die defending their right to say it. This is just one more American ideal you people will never understand
Both sides will accuse the other of doing this..and both sides are guilty--it is at the heart of what ails us as a nation.
Example: I despise disrespect to our flag and national anthem..but I totally feel that I fought for people to have the right to burn the flag...and take a knee during the anthem.