So question; The whole "Brexit" thing was about the UK leaving the EU, the people voted and the matter is settled or at least it should be, so why is there such a fuss about it?
Basically the UK government has been arguing amongst themselves about what kind of deal they're going to ask for from the EU,
for the last two years. They haven't even so much as solved the problem yet, including the rather large nuisance of the Irish border and the fact that Scotland and 48% of the citizens of England and Wales don't want to leave the EU. So they've danced and chanted for two long years about what kind of deal they're going to get out of leaving the EU and... they haven't run a single thing by the EU to see if this deal they've spent two years on is even acceptable.
So basically come October the government officials responsible for Britian leaving the EU will have half an idea of what they want, wander up to Brussels and be told "No", and then their two years of worthless fumbling will be, well, worthless, and we'll tumble out of the EU with zero deal, weaker trade strength. Then the incompetent government that caused this mess will blame the EU for stabbing us in the back, despite the fact we did this to ourselves willingly and didn't so much as come up with a reasonable plan and debate it with the people we're supposed to be debating it with in the first place.
But at least we'll have our sovereignty and jam will be our primary export. Most of my admittedly anecdotal evidence suggests a large portion of Leave voters simply did so because they really hate immigrants - even though they're the ones that'll be looking after them when they're old and incontenent because those are the jobs immigrants tend to take over here because British people are too proud to take them.
I've seen a few people blame the state of the NHS on immigration but I know a nurse, a junior doctor and a house doctor, and they all blame old people for the state of the NHS. A good 80% of NHS beds that are stuck are with people at 80+ who simply live in a hospital, either because they can't afford a care home or their family can't, or they simply go into hospital for something very minor and then end up there for months on end. Most GP surgeries are blocked up with old people with colds demanding antibiotics - I can't see a doctor within a week because the appointments are so backed up. Several nurses I spoke to literally said "We need a strong wave of flu" to deal with our overwhelmingly aged population.