>You don't seem to drive
LOL. I'm not sure if you're trolling, rude or just don't pay attention to the cars around you when you're driving, but I'll guess it's a combination of all 3.
>If you don't follow traffic flow, people will cut off in front of you, tailgate, zigzag, and do other dangerous lane changes/maneuvers much more frequently.
From my 45 years of observing people's driving and driving myself for about 30 years, I find that most people generally obey the speed limit or don't go much faster. Probably about 90% of people in general. At rush hour, it drops to about 50%. Some of the other 50% certainly do do all those fucked up, rude and dangerous things you mention, but it doesn't mean that the 50% of people obeying the speed limit are at fault. It's the impatient speeders who are at fault.
It's sometimes a bit of a Darwin award scenario. I live on Vancouver Island, and there is only a single highway over the mountains to Victoria. During commute times, about 50% of people speed significantly, and they do some of the dangerous and rude shit you mention. A few times a year one of them drives too fast for the conditions and ends up killing themselves, which then shuts down the entire north-south highway (the only fucking route) for 4 hours. The government is currently spending a shit ton of money to put barriers in the centre of the highway to try and prevent the excessively speeding idiots from killing themselves so often.
So no, I don't have much patience for the rude people who tailgate me, go 50km/h over the limit even in rain, and then get themselves killed and hold up the entire island for 4 hours because of their stupidity and lack of knowledge of basic physics.
(And I'm not calling out everyone who speeds, I do it myself sometimes, it's only the ones who go way over the limit with no consideration for weather conditions or safety, and the rude idiots who are in too much of a hurry to extend basic courtesy to other road users).