Can you provide examples of websites shutting down due to GDPR ?
I'm sure we'll get a separate thread for each site that's closing, to emphasize how the (advertising) world is ending, one just needs to wait.
https://www.polygon.com/2018/4/28/17295498/super-monday-nigh...
https://digiday.com/media/gdpr-mayhem-programmatic-ad-buying...
http://money.cnn.com/2018/05/25/media/gdpr-news-websites-la-...
https://www.theguardian.com/technology/2018/may/24/sites-blo...
Try doing some basic research before asking leading questions that you don't expect responses to.