>>ANewbu+(OP)
How do you "pull out" of the UK if you are not a UK company, you are a US company, hosted in the US, and proxied by Fastly. There's nothing to do? You do not need to abide by UK laws, even if your website is accessible from there.
>>sammy2+xd
It means to stop doing business there. For example selling ads targeting UK users to UK advertisers. London banking. Integrating with UK-based data-milking peers.