The Democratic Party has two reliable groups of adherents: the rich and the poor.
Not all of the rich, of course. Not all of the poor, either.
But a large swath of wealthy people, especially those whose wealth was inherited rather than earned, wouldn’t dream of voting for a Republican. Ditto for a large number of poor people who have discovered how to sign up for various welfare programs and intend to remain on the dole for the rest of their lives.
What do these groups have in common? Nothing. They rarely meet. And if they did they wouldn't...