Congress has approved legislation that would prevent any president from withdrawing the United States from NATO without approval from the Senate or an Act of Congress. The measure, spearheaded by Sens. Tim Kaine (D-Va.) and Marco Rubio (R-Fla.), was included in the annual National Defense Authorization Act, which passed out of the House on Thursday and is expected to be signed by President Biden.
There are many forms of democracy. Representative democracy is one and you seem to like direct democracy. I know that I don’t have time for direct democracy… there is just too much going on. But there might be a middle ground.