Well it’s partly players like yourself creating these absurd demands. I will just leave one of your quotes from another thread a couple of weeks ago.
I know this first hand since I somewhat recently geared a tank through RDF Gammas. If you’re not a decked out ICC raider when stepping into a gamma, people will flame you, actively try to sabotage your performance and make your life sour for having the audacity to gear up in catch-up content, because reasons. It’s very obvious these players think you’re not worthy to even be in there in the first place. It doesn’t matter if you put effort to buy well itemized BoE’s, funnel epic gems, bis enchants and consumes from your main. If your gear level isn’t up to par for a community set standard, you’re out.
Will you eventually get geared enough for entry level raids this way? Yes, probably. Is it a good experience? Heck no. Would I recommend it to a new player? No way.
And even if you endured this soul crushing mess and are on your way of denouncing humanity in the process, you still probably would get declined to said pug because you lack achievements and/or decent parses. It’s literally the WoW equivalent of needing 2 years full time work experience to land a junior internship.