The traditional economic thinking is that when the government borrows money and increases the public debt, it tends to increase interest rates and quite possibly conttributes to inflation. On that most economists agree but the more important question is "what is the debt for?" If we spend mooney on goods which may improve the functioning of the economy and eventually raise the standard of living fof the great majority of people, that's different from givng tax cuts to those who are already in an advantaged position due to their ownership of property or with very high incomes. Another consideration is: how do we protect our environment from climate change? That is going to become a very major public expense.