Except he's not funding a war, he's funding the defense of a nation fighting for freedom and its right to exist.
Ukraine didn't get in this war as a pissing match with Russia. It was wrongly attacked and is a democracy defending itself. It's had its children kidnapped and its civilians targeted. It will cease to exist if it loses. We don't have a greedy capitalist funding an unjust war for profit as you're trying to suggest. Helping Ukraine is the right thing to do. Refusing to help them will simply result in Europe fighting a better-resourced Russia later.
I don't doubt the possibility but that's not the situation here and now with defending Ukraine.