I'll give you major props for taking the time. The only issue I'd take in your summary is the "UFC deserves monopoly" part (I don't feel that the UFC has a monopoly), but it's all good.
I'll start off by acknowledging the fact I'm not a lawyer, I'm not privy to the backroom goings on at Zuffa, and most importantly I'm not a fortune teller. I can't come out and say for sure that this lawsuit and/or a union/association would be bad or what it would look like in the future. I don't have the expertise to make that assertion.
What I do have, as an outside party - as a layman, are concerns.
I have concerns when I hear that (according to what Dana told Joe Rogan), the UFC is going to have to part ways with over 100 million dollars to fight this lawsuit and the effects that money loss could have on future productions and ventures that would be used to grow the sport.
I have concerns, based on my experience with/research of associations/unions and my opinions of human nature, that an association/union could flip things around too far the other way and effect Zuffa's ability to run an efficient business. Effects that might lead to less productions, ventures, services, ect offered by Zuffa and the UFC to the fans.
I have concerns about the motives of the plaintiffs, who are "MOSTLY" (and I stress the word MOSTLY) disgruntled ex-employees who's days in the sport have passed. I have concerns that they may just be looking to take a piece out of Zuffa out of spite. I have concerns about Rob Maysey, a guy who's attempt at creating an association already fell flat. A guy who (from what I've read) pumped a ton of money into producing an MMA documentary "The Last Fight" that was supposed to outline all of the problems in MMA he's fighting against... but failed to have it completed (just what I read, if that's wrong Rob can certainly refute that).
I have concerns that there are concerns that I'm not even thinking of.
It seems to me that the majority of the people posting here have this idea that if Zuffa is beaten in the lawsuit, if an association for fighters was formed, everything would be business as usual, only the fighters would be getting more money. I don't think most of you are thinking of the potential consequences of these things, and to me that constitutes thoughtlessness.
All my concerns could be for nothing. Who knows. But whether or not you agree with my concerns, I think it's dangerous that so many people are not at least considering them.