I don't think the math is quite right on this.

Assuming there are 200,000,000 people in the US over the age of 18, and assuming that each of them gets $1000/month for 12 months, we have 200,000,000 * 1000 * 12 = 2.4 Trillion, which is similar to what we actually spent. The problem is, instead of uniformly distributing that 2.4 trillion among our citizens, we added complexity (and waste due to overhead) by giving money to special interests (airlines for example) and big businesses in various ways.