Re: Alf Garnett - Respect!
"Very, very few people would."
It's an interesting trait of human nature which way people will jump. Not to defend someone's opposite view per se - but to defend the civil liberty that allows everyone to put their viewpoint without violence. Take the obligatory Martin Niemöller quote as read.
In "Nineteen Eighty Four" - faced with his ultimate terror Winston capitulates. In "Brave New World" some of the people take banishment rather than toe the line.
Many tyrants have won by threats that it is known they will carry out - and many tyrants have fallen because they carried out such threats.
Only when it comes to the crunch does the individual find out how they will react - and if they are in a group then they can usually be overridden either way.