This is the US, the only way you find out is by spending millions in a legal battle, during which they might very well disable your game remotely (and get fined for that too after, if you still exist then).
Its like fighting Amazon. They kick you off the affiliate program and to fight you start with arbitration ($2000). And lose your ability for Prime shipping, movies, music and stuff. It's like impossible to fight these big dogs
Well, they cannot really disabled it remotely (it's not like that functionality exists in the current code base atm, maybe in future Unity version).
But they could kill your license so you won't be able to build your game using their tool anymore (however you could also just grab a new license under a different name).
What I wonder tho is if they are going to go to the length of asking platform holder like Apple / Google to delist your game and would they actually comply with Unity on this?
Definitely but Unity itself isn't really doing something "legal" here with their extortions, but I guess time will tell with the eventual legal battles.