The community will not change, posts with that goal in mind like this are pointless. Best I can suggest is for you to either start your own groups, which is not so bad to do, or be more selective of the groups you join.
I don't join groups with just AP requirements because half the time, I still get kicked, people who only want AP tend to be the ones with decent gear doing under 150k dps, while you're Raven 3 doing 200k, and they still will kick you for not having *better gear*. I either join groups that are Raven 3+, or that explicitly state "Any AP" if the host is decently geared. The groups where host gives 0 details/req or just say "bring dps" often kick, so I avoid those too.
My alts are all Raven 3, except my KFM with Raven 6, and every single one competes in damage and often outperform majority of players I meet who are using Aransu weapons with better accessories. Does it make it easier for me to join groups if I go on about that or make the community see the error of their ways and change for the better? No. But, it does help that I am able to join any group that accepts me and know that I can clear any dungeon I choose to run because, worst case, I can carry.
Remember, you're ranting that you're doing 200k dps with Raven 3, which I can say is roughly the same as half the players I see using Aransu 3 lol. When someone makes a group, that is exactly what they're thinking about. They don't want decently geared players who may or may not know mechanics and many can't even do 50% of the dps they should be able to. They're thinking, "I want buffs and players who outgear the dungeon and hopefully at least 1 or 2 of them can carry through and make it so fast so we ignore mechanics."