The reason we need austerity cuts is because Britain has no industry to rely on. If the country still had nationalised rails, power stations, oil etc. there would be no need for all of this rubbish which is literally ruining millions on lives in the UK, there is now a record amount of people who are dependant on food banks to live upon.
One policy of Corbyns is to re-nationalise railways, power stations etc. because of the massive amounts of money it would bring into the UK. I know that the 'spend money when there is none' argument is piss poor, but the fact of the matter is, not spending any money will never get any either, it'll just push the lower earners in the country into a downward spiral of poverty, like what is seen in the US.
I'm no economy expert, I'm sure nobody on the forum is, but even if you disagree with what I've written above, austerity, will not bring any money into the UK, because it isn't an industry, and with the cuts it has brought to education, the people currently going through it will get a worse education and therefore worse jobs/opportunities. The people that will hold their heads above the water are the ones with enough money to not be affected by any recession in the first place.
In conclusion, we need an industry that isn't there to supplement the country's money issues...So yep, I'm blaming Thatcher
-Sam