I play tank a lot. I get mad at tank-able classes that complain about the lack of tanks. I also get mad when DPSes slack or underperform. I don't give a flying **** about your feelings or queue time as DPS - if you're bad, I'm leaving. You're not my friend, not my pal, not my pupil, not my little ***** - I'm not gonna carry randoms and be #1 DPS as tank because *****s don't know how to play 3-button specs.
If you want to solve the problem, then there are 3 solutions: find a tank and group with him all the time, actually play a tank, or just git gud. If you can't do any of those 3, then that's not my problem.
P.S.
Yes.
That's a widely known truth in all MMORPGs. You respect the tank and carry your own weight or he just leaves and finds another group instantly. That's how the world works.