What behaviour, personality type or other have you eventually grown intolerant towards during your time living and how long/ how much did it take ?

A selfish sense of entitlement.

I have grown to abhor the attitude of government,local authorities blah blah,because they are opinionated,arrogant and not fit for office cretins who have even less grasp of what counts in this life than me.

Holier than thou bullies

The war hawk mentality. "Me and my people are the best and we need to prove we're the best by attacking everyone else around us because that makes us the best by definition." AKA the Israeli special maneuver.

People who talk to you in a condescending way bothers the hell out of me. I avoid those types as much as possible.

People who resort to personal attacks every time you disagree with them or are abusive or narcissistic....

A person not being Sam or Dean Winchester. That's completely unacceptable to me.

Great question! Probably people who have narrow views of anything then try to push it in an agressive way.

People who are controlling, and I tended to push back even as a child so only in a situation where I'm being paid to follow instructions, I can deal with it. Otherwise, while I'm quiet and gentle, I'm not "submissive" by any means.