Shootings and violent crime went down significantly from the 90s to the mid 2010s, with increases in poverty in some places.

The problem with saying “gun violence won’t go down until we alleviate this other problem” is that you’re trying to affect the problem indirectly.

Alleviating poverty is a worthy goal in itself. Alleviating violence is a worthy goal. They are not necessarily that causal. There is correlation certainly, but you can work on either one by itself