I told you what to do, make a thread to find people to play with or play with friends or solo.
It's like you're siding with them in the suggestions forum. I don't get how it's acceptable to defend coop with, "I get that it's shitty, so don't use it because that's not what it's there for."
I'm not "siding" with anyone, I just told you what to do. And if the people don't want you in a game, nothing can be done. This isn't a Dev problem, its a community problem. Those can't be fixed, so you can just say its "broken" but nothing can be done.
What should Devs do? Make it impossible to kick people? Add time limits before kicking?