Propping up the stock market to fuel consumer spending is extremely regressive. The top 10-20% make up ~50% of consumer spending. [1] Effectively you're giving the wealthy a risk-free bet with huge payoff if it succeeds. If that bet succeeds it consequentially means a ton of job displacement which will mostly affect the other 90%.
1. https://www.wsj.com/economy/consumers/us-economy-strength-ri...