What about people pretending to be universities and spreading dangerous falsehoods?

He can say whatever he wants. His actions, however, show that what he said isn't the truth.

Report the messages. Chances are the moderators of those subs actually remove those messages, as opposed to what happened in T_D where the moderators left messages which violated T_D's own rules up.

T_D wasn't quarantined because of what people post (as every sub has people posting violence and nonsense from time to time) - the problem was the moderators weren't moderating it.

The problem was the moderators weren't removing posts which violated Reddit's rules and their own subreddit's rules. If a subreddit has poor moderation and is home to threats against people which aren't removed, the subreddit gets quarantined until the moderators show they're actually willing and able to moderate it. This goes for any sub, left or right.

And a subreddit called "fuck the police" is fine unless it contains posts urging people to go out and kill police officers, as happened in T_D, and especially if those messages aren't removed by the moderators.

So it's undemocratic to ask the people what they want? If they still believe the same as before, then nothing will change. If they have changed their minds, it's undemocratic to ignore them now. And it's impossible to ask the same question twice in a referendum, so it can't possibly be re-running it.

Brexit wouldn't be solved, it would just be possible. Any form of Brexit will have its own problems which will need solving.

Boeing said they didn't need further training, so that is still Boeing's fault.

As Boeing said pilots don't need further training to fly this variant, it's still entirely Boeing's fault.

Don't generalise. It destroys your argument. There is still an imbalance in power between an employer and employee, so unions are still terribly important. If one looks at countries with functioning unions (Germany, for example), you'd see they work and work well. They're not going to magically fix shitty business cultures, but they give the employees more of a chance to fix them.

If a company is large enough it can prevent people from knowing about the alternatives.

They didn't enforce the policy as the current administration is doing. That's the difference. It would help your position if you learned what it is before trying to use it in a discussion.