The public sector has been under massive strain, but there are clear signs that we are emerging from a period of economic strife and that the corner has been turned. The key question in this I guess. Tax revenues are up, unemployment is at record lows, foreign investment is high, especially in UK tech firms (but of course not all economic indicators are favourable, they never are). Which of the parties do we trust to build on this base, maintain high levels of employment and investment, so that we can begin to invest in services and infrastructure. If you think that is the Labour party, fine, vote for them, and nothing I say is going to convince you otherwise.
BTW, I know all about corporation tax, I've just paid my bill. What made you think that? Incidentally, having paid my bill (based on a decent year last year), I have had to shut my business. This year has been terrible, so have made a loss (my own fault, made some bad decisions), and on the basis that there was no way I was not going to pay HMRC (they're savage when you miss deadlines), I paid the bill, but this made the company insolvent and unable to trade, so had to close the doors. Devastated.