I considered a startup after university in the UK. The talent arbitrage is absurd, physics grads with 1sts from top Russell Group unis fighting to be paid £30k/yr. For me it came down to security, life is expensive, rent is expensive. I didn't have a spare parental garage to setup five computers - I barely had room in my flat for one desk . I barely had money for that flat let alone internet, and food. I had zero cap…
The UK is a giant version of the Cayman Islands. It's a big bank providing financial services to rich people while keeping them anonymous. Everything else is secondary. And Brexit only made it worse.
Of course it is not perfect.
The people of Britain may not have huge bank accounts, but this is partly because they collectively spend their earnings on the worthwhile things mentioned above.