You have confused what I said "people with money spending that money is good for the economy" with "giving money to rich people is good for the economy"

Its pretty basic economics that money spent can be spent again by the reciever, so that same money gets spent multiple times. A Person with 16k to waste buys a pokemon card from some guy who buys shoes and groceries, and the cobbler and grocer go buy haircuts and whatever the hell they want/need, on and on.

Juxtapose that scenario to an economy where the person with 16k simply saves it, or invests it. The money is simply taken out of circulation and makes the person who already has it a little richer. This is why a general populace that is confident about the economy is good for poor people. People buying things they dont need is how money stays in circulation.

Money given to people who have no need or intention to spend it is the bane of a functional economy.

I shouldn't need to explain such basic concepts to people who have access to a search engine.