As far as I know it would make zero difference which jurisdiction the website (or any website) is operating out of because the domain itself (which is .com in this case) can be seized by law enforcement agencies.
You do realise that most law enforcement agents are corrupt, don't you? 1xbet and 1xbit have enough resources to buy the services of many cops around the world which is why they aren't really a big threat to them.
They could go down completely if they make some crazy mistakes which would put them in the limelight for all the wrong reasons if you ask me.