As i said multiple times and you didnt understand but took the discussion to raiding.
What you do in the game, is your problem and how you spend your time is your problem.
If you cant comprehend the basic math behind it i cant help you, if you cant understand that the 890 Heroic Nighthold raider will have more gear than your average PvPer, i cant help you.
It doesnt matter if you do Mythic + or PvP, it doesnt matter if you have 910 item level, without set bonus and raiding trinkets your character is trash.
First of all they said themselves the top pvpers will have gear around Heroic level, which makes no sense since it gets disabled in instanced PvP anyway? Rofl.
Secondly, have you finished basic elementary math? Do you understand what a set bonus and raiding trinkets means to percentages?
Quick example:
900 item level PvPer outside in the world = 150K DPS.
900 item level heroic Nighthold raider with set bonus and trinkets = 220K DPS +, wanna know why? MATH.
It has always been the case, and will always be, the Mythic raiders will always have an advantage where Blizzard allows it to exist.
They changed Instanced PvP after 11 years (Finally) so gear doesnt matter.
There is your PvP, stop talking about it anymore, gear doesnt exist in it anymore.
They just give you drops so you can GEAR CHASE, AND HAVE THE DELUSION YOU ARE GEAR CHASING AND GIVE THEM MONEY.