As I said, history disagrees. Your opinion is a somewhat partisan perspective that is attributing to Reagan broader societal issues for which Democrats also share blame for engaging in tribalistic identity politics.
Reagan presided over 8 years of relative peace, restored the professionalism and morale of our military, successfully maneuvered the Cold War escalation as a deterrent and then deescalation as the Soviet Union crumbled, built a broad political coalition, and enacted much needed reductions in federal bloat.