Grab your wallet cause you're gonna need to boycott more than MGM. They own quite a few big names on the strip and tons of properties nationally.
(Bellagio, Luxor, NY NY)
#TuesdayMotivation
Also, I hope you know to stay away from the Wynn as well.
Basically, the Las Vegas strip is a nest of GOP vipers.
Even just a few big name conventions like @CES agreeing not to patronize MGM would be YUGE.