Because Democrats understand that any progress toward their ultimate goal strengthens their position. Republicans want all or nothing, and usually end up with nothing
When it comes to achieving policy goals, Democrats are smart and Republicans are dumb
Democrats' policy ideas are terrible. They damage this country. They invariably expand the scope of the federal government and war against the productive sector. They make problems like poverty, crime and moral depravity worse. They promote corruption. They accrue debt.
To summarize, their policy ideas suck. Left unchecked, they will destroy this country.
Republicans are not perfect by any means, but their policy ideas are superior to those of the Democrats in almost every conceivable example.
