Well..... maybe you have not been reading enough news.
People complaint because most services in this country have been steadily and quickly deteriorating, under an ever lasting tory "leadership". Every single one.
Health, pharmacies, education, transport, welfare, councils, roads.... even journalism itself- facts are no longer that factual.
Surely this has happened in other countries and it has something to do with global economics. But there is much that can be done to sort it and the tories did not move a finger, but got all their pay and treats without a second thought. Do you remember the Health minister refusing to meet up with the unions about the nurses strike? He just plain refused to get his ass to a table. Really, what other example do you need? We paid this idiot money to deal with things like those!
At a global level, the failure of the liberal capitalism system to move money towards the lower earners and distribute it along the scale on a long term affordable way, instead of the massively precarious top heavy current situation, is at the centre of many problems.
But that is what we vote governments in or out, to deal with these things, adjust their national laws to changes and influence the global arena towards fairness to their citizens, that not damn coorporations!
Now, you may be happy. Good for you.
The guys that complaint are not neccessary unhappy, but concious that if we do not say the truth of what we are living, the ultra rich coorporations would keep amounting money while there are no medicines in our local pharmacy and much of the population cannot afford heating their home as they used to.
We need to fight for our rights.
But, I would not leave UK, no. There is no much sense on leaving. The way forward is changing how the country does things, so we get those services back and running nicely.