The UK has the disadvantage that there's no constitution and a weak court system, so there's no opposition other than pure political opposition. That makes anti-privacy laws pretty easy to pass, since they tend to be generally popular amongst voters.
Ultimately though, any country where big tech is allowed to operate has essentially unlimited access to the private lives of their citizens, through subpoenas. Until that particular barn door is closed, the UK's panoply of CCTV cameras vs Germany's proudly blanked-out google streetviews are much of a muchness.