America helping the Kurds was a drop in the bucket compared to the shit that actually destroys Americans' finances: things like

• A corrupt, privatized, and ridiculous healthcare industry where we spend more than anyone in the world per capita on healthcare with middling results. This includes keeping dental and vision as separate from "health", which is archaic and absurd.
• Unsustainable, car-centric, sprawling development
• Refusal to enforce anti-trust law on monopolies
• Letting massive corporations hoover up housing
• Giving food and restaurant companies carte blanche to destroy the health of Americans by getting them addicted to poison (75% of the US adult population is now either overweight or obese)
• Refusing to adequately tax the top even 0.1%
• Locking up non-violent drug offenders, all but ensuring they'll never be fully productive members of society and forcing the taxpayer to pay for their incarceration (see also: private prisons)
• Placing college graduates into crippling debt with enormous student loans
• Deregulating labor so that e.g. paid family leave isn't even guaranteed
• Keeping the federal minimum wage at an insulting $7.25 an hour
• Giving tens of billions to Israel to carry out genocide
• Failing to adequately fund public education, thus ensuring less productive taxpayers; also while trying to funnel taxpayer money to private schools
• Failing to put adequate public transit and micromobility infrastructure in place, ensuring the working class either has to own and maintain a financial black hole in the form of a car or basically live in commuting hell. I'm not joking when singling this out: this is an enormous problem for upward mobility.
• I could just keep going forever.