That is not true at all. A TON of things your taxes go for make money, most a lot more than stadiums will.

For instance roads and bridges provide the infrastructure needed for business. This is a diversified investment that allows for many people and businesses to prosper instead of a select, politically connected few. Even welfare payments increase the velocity of money through your local economy, providing a huge boost to the economy.

Stadiums have proven time and time again to be poor investments, and yet they keep getting funded.

Some sources explaining this more in-depth if you are interested:

WSJ- Use of Taxpayer Money for Pro-Sports Arenas Draws Fresh Scrutiny

The Atlantic - How the NFL Fleeces Taxpayers

Forbes - Publicly Financed Sports Stadiums Are A Game That Taxpayers Lose

Bloomberg - In Stadium Building Spree, U.S. Taxpayers Lose $4 Billion

There are very few articles or studies showing that taxpayer subsidized stadiums are a net benefit for a community (and I could not locate a single one that was even close to impartial).

If you are in St. Louis and ok with the fact that your taxpayer money will go to Kroenke in exchange for football, than that is your choice. But do ever believe that this is a net benefit for the city's economy or for people who are not Ram fans.