>$50,000,000 is not an insane amount of money
Please reconsider the utterly nonsensical nature of your statement. Anyone who says $50 million dollars is "not an insane amount of money" has no business commenting on financial affairs, let alone money provided by taxpayers.
>global cooperation as a tool for stopping authoritarianism at the source. We help nations
Cooperation is nice and warm, but the keyword there is "help". You can't help others when you need help yourself first, and right now today there are countless matters that concern ourselves and require proper attention.
Whether it's crumbling infrastructure, insufficient housing, rising costs of living and medical care, excessive costs and debts of education, measures and mandates necessary to prevent and recover from natural disasters, and many more, just imagine what another $50 million dollars could do. And it's not just that $50 million, there are certainly far more where that came from.
Hell, even if we have nothing else to spend money on we still have an utterly crazy amount of debt. Putting $50 million towards our debt (aka cutting $50 million in expenditures off our national budget) is $50 million less in debt.
>America doesn't have to help anyone. ... But we don't do that, because when we do we prove to the world that we are exactly the evil and selfish caricature of a nation they think we are.
There is nothing selfish about "putting on your own oxygen mask before helping others", aka America First. American tax dollars are first and foremost paid for the mutual benefit of Americans. If we happen to have any surplus left, then we can talk about how we can donate that money to charity for other countries.