People pretend not to know but mass immigration creates…issues, and so the UK became a hotbed of espionage and influence operations. With a certain demographic there’s also a high risk of breeding terrorism and social unrest to say the least, that cannot be defused through typical means at such a high rate of immigration through normal means. While these particular measures are draconian, in the end something similar would be done. You see the same trend playing out in other European countries with Chat Control, so to say it is a UK thing is naive. On the other side of the Atlantic, the US probably already can break into these apps because of their technological superiority, and other countries like China straight up demand a back door, so privacy is well and truly dead in modern times.