So is minimum wage, despite all of the screaming. Minimum wages ensure the existence of a working class. When the minimum wage drops below subsistence, there are civil disruptions that are bas for business.

When the Democrats expanded health care, they did so using a plan devised by the Heritage Foundation. It works on free-market principles, of consumers purchasing insurance from private enterprise. It is also very pro-business, creating a larger class of potential employees who can be hired without employer-sponsored benefits.

Many democrats would indeed like a government-run universal health care plan. But it's not a majority of the party, which is indeed (as the OP said) dominated by the center-right.