Would this include things like the contents of messages?
I know it's not end to end encrypted, but if they're just gonna search the whole database for keywords, and then decide I'm of interest because I joked about abc or admitted to xyz in a private chat, then that's a load of crap.
They dont get to choose if they hand over data. If they dont do it voluntarily, they just get raided. Also handing data to any EU police means that the US will get that info too.