Is that £250 each just for GDPR compliance? That's one law in one region. Now multiply it by the number of legislative bodies worldwide and the number of relevant laws passed by each - how much does that cost?
If a business doesn't want to be compliant with the laws of all ~200 sovereign states in the world, they're most welcome to just select a single one and do business there (not the US though, as laws often change for each state so that's right out the door). I'm sure the competitors in the space will love having one fewer competitor.
Complying with the laws of 200 countries is negligible for a big business like Google, a significant burden for a small startup, and a prohibitive expense for a new open source project.