The US economy is extremely robust right now and the European countries that took a balanced budget austerity approach are in shambles. Look at England. Just carnage over there.

Deficit spending makes sense when the spending invests in the future. Every mortgage holder understands this implicitly. If these deficit levels concern you the obvious first place to start would be on the revenue side, by letting the Trump 2017 tax cuts expire.

Looking at those charts makes Biden's presidency look even more successful to me given everything he walked into.