Actually, the Democratic Party is quite sane. The Party is evil, but entirely sane. Its unwavering goal is to destroy the United States of America and all it represents: individual liberty; private property rights; human ingenuity and innovation; the rise in the standard of living embodied by a once vibrant but now declining middle class; benevolence, civilization and rationality.
If you wished to destroy America, you would do absolutely everything the Democrats are doing: create chaos by opening the borders; divide the people with ridiculous claims like there is no such thing as gender; eradicate prosperity by imposing socialism and Communism; set violent criminals on the loose in cities by eradicating bail and opening up prisons (as Mamdani promises); and frightening people into submission via social media censorship and a government takeover of schools, media and popular entertainment culture. Democrats know exactly what they are doing. They are evil — perhaps the most evil and destructive sociopolitical moment in all of human history; but they are ruthlessly and tragically sane.