Not if the problem is with the implementation. The fact that some countries use their courts to jail political enemies is not a reason not to have courts, for example.
No. But its still bad to create exceptions to the rule of not jailing your political enemies and then using democracy as a prop to pretend there's nothing wrong.
Exactly. "tyranny of the majority" is the cited reason the United States adopted the bill of rights with the very first amendment cementing our freedom of speech. This is not coincidental.