Are you sure you replied to the right comment? Where have they claimed that?
Here's some Farage quotes, so you can see that there is no contradiction between the comment you were replying to (him saying it was a disaster is compatible with all this) and him still being a leaver:
“I don’t think that for a moment,” Mr Farage replied when he was asked if the UK would have been better off staying in the EU, the world’s largest single market area. “But what I do think is we haven’t actually benefitted from Brexit economically, what we could have done.”
“I mean, what Brexit’s proved, I’m afraid, is that our politicians are about as useless as the commissioners in Brussels were,” he added. “We’ve mismanaged this totally, and if you look at simple things…such as takeovers, such as corporation tax, we are driving business away from our country.
“Arguably, now we’re back in control, we’re regulating our own businesses even more than they were as EU members. Brexit has failed.”
The same thing is true in Sweden. People vote for the party that blames the immigrants and then goes on to rule with the liberal conservative part. They all know that during the time they claim is the downfall of Sweden, we have more than one third of state tax income and had the worst privatisation of schools worldwide, . Yet the problems with schools and healthcare is immigration.
Demagogues are what they are.
All of the currently-rich nations had a multi-generational baby boom*, long enough for their systems to assume and become dependent on that population growth.
* babies being the most extreme example of "influx of illiterate people, totally dependent on government handouts", though people only objected to them in the UK when I was a kid when it was single mothers producing them
Families started to have fewer kids, but the systems still presumed and needed more people to avoid stagnation. Japan chose stagnation instead of welcoming as many immigrants as it needed, and "the lost decade" became a plural: https://en.wikipedia.org/wiki/Lost_Decades
> Healthcare and insurance, literally everything is pricing the middle class out of existence.
I assume from this that you're American? That's basically just America that has this problem. Healthcare and health insurance is fine in most other developed (and developing) nations, even e.g. here in Germany in those few years where it took on around a million asylum seekers.
IMO, many of the UK politicians themselves don't realise how out of touch they are, both with the people and with the systematic reality of the world in which they exist. (Thinking back to David Davis on Brexit, saying they had a good idea what Czechoslovakia wanted from negotiations, despite it having ceased to exist in 1992).
The school results are worse. Even here the claim is that it is the immigrants' fault. The privatisation of the school system in sweden has led to increased segregation of the school system. Private schools can be found in areas where they get "easy students". Yet they fail to deliver any better results than public schools. Which is amazingly dumb. The state pays private schools (they are open for anyone and have no tuition fees). The schools can then let less money go to tuition and more to the share holders/owners, while being able to claim that they are just as good as schools with all the tough students. By all measurements they should be much better. It is such an enormous failure.
And who do we blame? Immigrants.
And social mobility is going downwards. Not nearly as low in the US, but I want to think that we at least still believe in the value of hard work.