It's Friday night for godssake, stop with your common sense.Because there’s not the officers or the custody space for them. Over a thousand were arrested in the previous spate in London and it cost the Met millions it doesn’t have in OT and tied up huge numbers of officers who have far better things to be doing. It’s also extremely hard to justify using force on peaceful protestors regardless of how irritating and disruptive they’re being, and they’d be outrage if you had front pages of public order officers smashing about old dears and kids for trying to save the planet.
They’d actually be scoring a massive own goal if they ramped up their actions and would give us much more options to deal with them more robustly. Which is why they’re leadership has made sure they all behave themselves and have done a good job of it.