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.
Unfortunately the US founder had the same idea as you about reform. IE no one person or small group should be able to do so.
Now over decades Heck centuries. Power has migrated to the president. As groups continued to objects to slow change. So took the easy answer of trusting one elected member.
But any change to significantly limit power. Would need the constitution to be reworked to limit such power. Would require a huge approval. 66% of every state I think.
The very fact that Congress has to worry about such things. Is clear evidence such agreement is not and may never be possible.