I would imagine a lot on here are in a position to change residency if they wanted to and have possibly considered it, No good to most brits because they re still working but they are unlikely to be wanting to do trips exceeding 90 days.Again, the implications for residency changes are significant for some people and don't make it practical or add to the complexity that wasn't there beforehand.
The fact that the UK didn't deport as many criminals and undesirables as it could have is a reflection on the Governments, not the laws. We had plenty of opportunities to do so but didn't do enough. We are now in a worse situation as over a dozen EU countries refuse to extradite peeps to the UK due to our changed status.
Good point, I'm not a fan of any current Government ( all too liberal for my liking ) But don't we want to keep the criminals out not get them back?