Imagine taking a LFR group into the mythic raid.
How do you think that will turn out?
If you have content were one inexperienced or unprepared player can ruin the run there’s going to be standards. Unless you idiot proof the content that’s just the way it is.
Most of the toxicity is coming from people demanding to be let onto the varsity baseball team without owning a mitt or knowing how to play. What is it that makes you think you deserve a spot more than someone who is prepared and spent a lot more time improving their skill?
Why would someone who’s ran a total six 2’s for all dungeons deserve a spot over someone that’s run the dungeon your doing over 20 times? How would it be fair to them to give you the spot?
And unlike the real world analogies, you can form your own teams and get that experience.