Yes it’s possible. This was the case in MoP and WoD. So shush with the caps locks. Caps locks doesn’t make it true, it just shows that you have no clue.
Also didn’t you understand the rpg part where it’s actually fun to aim for the best stats? Build up your character? The sense of progression?
Imagine if something similar would have been added to pve, removal of character progression. Only thing added every week would be a buff to everyone that makes them deal more damage/healing/gain damage reduction. The outcry of that would be hilarious to read.
And btw, they have had buffs like that in the past, icc in wotlk comes to mind. So it’s possible to do that. 
Getting 400+ ilvl pieces is easier to acquire from pve than it is from pvp when it comes to ratings.
Rated bg’s are generally considered to be easier because you have 9 other people to make up for your mistakes, so no, it’s not better. It’s easier.
Because we are forced. We won’t get anywhere just by doing pvp.
Not sure why you are talking about minority, do we not get to ask for anything as pvp players just because you think we are minority?
Mythic raiders are a minority too, so are pet battlers. Yet both get content. Pet battlers even can chose between pvp and pve.
I didn’t bother reading all of this but LOL, you are so wrong. These threads pop up every now and then regarding pve, in every expansion:
This is from the weekly chest. You know, the one that you loot once a week.
Ilvl drops from arenas are lower. Today I got a pair of 395 ilvl pants as a drop from arenas, this at 1970 rating. It’s worthless.
From weekly pvp chest I get 400 ilvl. Unless they proc they are usually worthless by now. Doing m+ is far easier and gives the same ilvl.