This is the worst advice in this thread. Not only do you lose the European market for no good reason and on logic you might hear from moon landing conspiracy theorists, but you don't even solve your issue as you will still have European users no matter what. People do travel.
If you don't have physical assets in Europe which can be seized then whether or not traveling Europeans decide to use your service is irrelevant. GDPR is not going to force you to take down your service in the US or India. It's kind of like a Saudi visiting California and requesting that local gay people be stoned as per the law of their land - not going to happen.
