I would call that a total failure by any possible interpretation.
Also, did I understand you correctly: you not only want to cut american military spending, but also keep US morally responsible for situation in Ukraine?... Now, both these viewpoints are to some extent reasonable, if they come from corresponding first principles. But I can't possibly imagine how the same person can hold these two views at the same time: they completely contradict each other. Either US is responsible for events across the globe, OR it shouldn't have a huge military - how on Earth can you believe both?!
And now we have Myanmar muslim situation and Yemen where people are begging for US intervention, but in all probability if we intervened we would be getting criticized for it by the same people asking us to intervene in a few years
We also certainly intervened in Ukraine by fomenting a coup there. Rolling tanks there would probably be WW-3.
None of these interventions has made life better for anyone other than the evil ding dongs at Brookings and in the Pentagon.