If they (the big vegas companies as a whole) let things go as they are, they will be in less of a position to take over the world market because other entities will become entrenched in various countries. Those same entities are now also building their empires with US gamblers.
If US companies want the US market and beyond, they’d like to be the ones using the US gambling market. They can even look out for 3-5 years… they don’t want the competition using all of that income while they are unable to use it.
As I pointed out earlier, the Vegas casinos have very little branding outside the US, with the exception of Caesar’s Palace, and now the Wynn and Sands and soon the Venetian. Prohibition, or lack thereof, will have close to zero impact OUTSIDE the US.
And again, you’re talking about any online entity (Golden Palace and 888 spring to mind) being able to achieve more visibility than MGM, or Wynn, or Sands?
In the US, that is close to impossible.
Outside the US, the B&M casinos have little visibility to begin with and prohibition doesn’t change that. I can assure you they are not the slightest bit worried that any online operation is going to steal their income OUTSIDE the US.