This will create more attack vectors, make phones more ineffeciant, make massive piles of people innocent of wrongdoing put prosecuted and jailed for sending pics of their kids to their family and doctors, and generally increase the power of the state to surveil its citizens to an extreme degree, on par with the worst totalitarian dictatorships.
Its funny, every time I talk to a brit they seem very intelligent and reasonable but then they've been happily electing people who make their country into an extreme surveillance state, labor & conservative both. I think their accent just makes them sound smarter than they are.