Libertarian backers have immense wealth from both the fracking boom and silicon valley. The difference between neolib and libertarian is basically non-existent. The Libertarian anti-war stance is opportunism, and their criticism is just that their PMCs should be hired for more imperialist ventures.
Middle income Americans trend reactionary on political-economy because the bourgeois narratives work for them and their livelihood is secure, and the state does often end up helping them out.
America is an exceptionally bourgeois country, especially considering the colonial question. The proletariat is outnumbered and we really need to stop trying to pander to the settler petit bourgeoisie, they already have state power.