Maybe the cost of GDPR compliance just isn't worth the small amount of revenue that they might make from European visitors? US visitors are probably much more 'valuable' in terms of advertisement revenue, and also much more likely to be a subscriber. And I say this as a European myself. It sucks that I have to jump through hoops to access some sites but I can't really blame them.
Having worked on and lead 3 GDPR compliance projects, I can say that the cost of GDPR compliance is close to zero if your business is not tracking users or selling their data without consent. This assuming you are following best practises for storing users’ data (ie encryption, limited access to authorised personnel, etc…). If you store data without encryption, allow randos to access users’ personal data, you shouldn…
As a former GDPR compliance officer for a company managing about 40 customer websites, I can confirm that GDPR compliance is not burdensome or costly, unless you are intent on violating the GDPR. You appoint someone on your tech staff as compliance officer, and as an organisation you make sure that complaints are handled.
Handling complaints is something any business should be able to do, GDPR or not; a business that can't handle complaints isn't a viable business.