Part of the issue is that government spending is part of the GDP formula. That includes deficit spending, which means that part of our GDP growth would vanish if the budget were balanced. That would in turn lead to lower tax revenues, requiring less government spending to KEEP the budget balanced, thus reducing GDP growth even more... we’ve got ourselves in quite an economic tangle at the moment.
Which is a part that causes an overstatement of real growth and which causes inflation.
In 2013, the federal government pumped an artificial $2.3 Trillion into the economy with deficit spending (credit), fiat money, and paying banks to take loans. For that they got $300 Billion in growth. Functionally, the economy was imploding at $2 trillion a year.