All the developed countries of the world have universal health care or single payer insurance except the US. How are Democrats extreme left in wanting what the rest of the world has?
Are Democrats too far left in trying to see that all people, minorities, LGBT people, immigrants, the handicapped, elderly, women, children ... everybody has an equal opportunity to be healthy, educated, live without harassment, be treated justly, have their country defended and see that they participate in all of society's opportunity
Our Constitution says that's exactly what we are trying to do when we say "to form a more perfect union" How is that too far left? Or perhaps your interpretation of a more perfect union is one run by wealthy white males, for wealthy white males with the legal power to run rough shod over everyone that isn't wealthy, isn't white, and isn't male.
Why would anyone want this country to fail. Democrats are desperately hoping that someone behind Trump, managing him, keeps him from causing the failure of the government.