You are not the rightful owner of that BCH unless it was explicitly stated in a ToS, before the event, that any such coins will be distributed to the players. Stop acting self-entitled.
Any coins held on an exchange/online service are not yours, they are IOUs.
1) I am not impacted by this. I stopped holding funds on Betcoin since May.
2) ToS mean nothing in regards to the law.
3) No, when you upload funds you don't transfer ownership. That's exactly the reason why Coinbase did a 180 because they were gonna get sued left and right.