“Not with my money. Spend yours.”
You can always refuse to pay your taxes (which I do not recommend). That way, your money won’t be spent. Until you’re convicted, and you’re fined; in which case your money WILL be spent.
There are a lot of programs that the government spends our money on with which I disagree. That’s natural. But it’s also the cost of living in the US and the price of being a US citizen. If Congress stops funding Ukraine, I will accept that. That’s our system.
Actually, I don’t pay income taxes. I have no income.
Or you can donate your money to the Ukrainian military after funding US taxpayer money is cutoff. Or, better yet, get your sorry ass over to Ukraine and fight the Russians yourself. Have the courage of your alleged convictions.