I do think many people will vote Con again. As other posters have said many agree with their policies, and for many they haven't gone far enough.
The thing is, we none of us, (perhaps only billionaires/russian and chinese Oligarchs) live in isolation. If as a society/country, what you will, we become poorer, less well educated, unhappier and more dissatisfied, who would want to live here anyway?
If you are very wealthy or have a great education and skills that can go anywhere in the world, why would you choose to stay in a country where a large section feel they have no stake here?. And with that feeling, all the social
unrest,degeneration of cities/towns etc?
Of course you're insulated if you're wealthy (ie buy the best education, healthcare,live in a gated community if you must), but who wants to live in a hopeless, stagnant, sludge Britain?.