Julian Assange would disagree with that.
> Civil amenities are also significantly improved, as well as one of the most effective (physical) and cheapest health care services.
It is cheap, but it sure isn't as effective as private healthcare. Wait times on NHS treatment start at several months and can be years. I don't know about you, but waiting months to have a serious condition diagnosed and treated isn't what I'd call 'effective' healthcare.
> it is still an excellent place to be.
Oh, it sure isn't for tech workers. The taxes are very high, the public services you get back are shoddy, certainly shoddier than what you'd be able to afford with your job in the US. The salaries are 2-4 times lower, depending on your experience.
On the other hand, if you're working at a low income job, then it's not too bad -- you usually can qualify for certain benefits like housing and min wage is livable in most parts of the country (except London). But, given the context, I assume OP is a tech worker and, for a tech worker, unless you're fleeing war or conflict, there are many, much better options. The US is the obvious one, but even working remotely from most central or eastern European countries is going to be a better experience and lifestyle than the UK.