People get upset easily. Idc how blatant his lies are. He runs a business, and I've yet to know of a president or CEO of a multi billion dollar company that doesn't lie and isn't a cutthroat.
Accept that he does lie, he does screw people over, but those two things aren't exactly difficult to decipher from his public appearances.
However, without him, the UFC would not likely have survived, and more importantly, nation-wide legalization of MMA would have likely been delayed a bit, maybe 5, 10, maybe even 15 years if not longer, regardless if Dana is someone you like or not.
I don't necessarily like him personally, but I appreciate to a degree where MMA is compared to where it used to be, and his contribution to that journey.