It is my sincere hope you eventually step away from this cult and find a nice conservative, anarchist, or socialist set of values. American "libertarianism" offers you nothing.
I find your foreign policy beliefs mostly on the right track. There needs to be greater democratic accountability of American foreign policy, though this does not necessarily mean we sever all of our greater ambitions to world hegemony. America's economic and military power are too outsized to go "isolationist". We need to stop blowing up Yemeni villages, creating jihadi hellholes, bankrolling apartheid, and supporting atrocities across the globe though, yes.
I do not like your constitutional fetishism though. Just as often (more often) that document is used as a
shield by the powerful against the people (or the powerless), and no scrap of paper is going to stop me from wanting to see justice carried out.