I'm in the EU, and a couple of the corporate VPNs I have used here have had their exit IP in the U.S. or Canada. Which means that when I'm at work, I appear to be in Seattle, and these sites are not blocked. Based just on that, I'd argue that "Blocking 500M Users Easier Than Complying with GDPR" is probably not even a true statement. I doubt EU regulators will go after these sites because they really aren't that cons…
It's trivial for end users to bypass any restriction through technical means (whether legal or illegal). The fact that they bypassed the block is an act that indicates that they are bypassing the rules and thus are forfeiting some of the protections they would enjoy otherwise.