A lot of it is area/cultural of the pax you have onboard.
Same with the crew as well. The CC from further north of the UK are less prone to letting theatrics start.
Same with age as well, the more mature CC have more life experience and stop discussions occurring.
It is a fact that some see it as an infringement of their human rights be told what to do, and will argue black is white and vice versa.
To be honest I don't miss at all uplifting pax in the SE its been 2 years since I have. And in those 2 years I have had only one pax required to be off loaded. I will give you 2 guesses on his nationality and where he came from.
If you think its acceptable refusing a lawful instruction from flight crew do us all a favour get the Eurostar or a bus and let the rest travel in peace without subjecting them to a tantrum.