You are having two different discussions. One is that you want to minimize what the gov't offers to curb that bill. THere is a vast area to explore there but it is not the point of this discussion.
The people, as a block, have determined that this is the set of services the gov't is going to offer. they need to pay for it through tax policy. Running a deficit, while sometimes necessary, makes as much economic sense as credit card spending.
Besides, over the last few years, there has been a significant amount of 'austerity' cuts to gov't spending in the UK. For the most part, the economic markers seem to show that it is working better for the UK than the rest of the EU. That said, there is still a shortfall. You need to adjust both dials, cutting spending and raising revenue.
All this is about is attempting to address the shady loopholes where corporate accountants have figured out how to avoid national taxes, by the letter but against the spirit of the law.