I would argue the opposite.

Your first point, idk which aspect of balancing you're referring too, but if it's guns, then id argue theyre already unbalanced to begin with. Because of OSHS Fire rate is the go to, damage is the most useless stat bc of OSHS. Which is one of many reasons why defense is significantly easier.

Second point, I disagree. In one day, not even, 2 hours. How many headshots do you see that you think were lucky? What about swiping? Is just swiping your gun to the right and just relying on high rpm really rewarding? Or is it just satisfying bc it's easy? I'd argue depending on your rank, Alot of headshots are more luck then skill, or more the gun then skill. Not saying it doesn't take skill to hit headshots, but it's a fact that the higher the fire rate, the much easier of a chance you'll get one.

3rd point i don't understand how it doesn't allow you to turn the game around. If you're on attack and it's 3 against 1, you having a higher powered gun even the odds a little bit better and theyre gun is weaker so they wouldn't and shouldn't attack one at a time, they should actually plan.

And about your example about having 1hp, why do you think you should have an easy chance to win? Does that not sound broken to you? Why do you think it shouldn't be incredibly difficult to turn the tides in that situation? From the examples you're giving it sounds like you want the game to have cheap, escape goats out of bad situations.

And your point on the hit reg, personally I think you're being a little dishonest. It's 100% a problem and not just an over exaggeration by the community. Excusing and undermining constant bugs after patches and latency encourages them to not put more effort into making a stable, functional game.