Enjoy the reality of living in increasingly right leaning country where the few Democrats who do manage to get elected do nothing but push right wing positions save for a handful of social issues.
This is a progressive talking point without facts to back it up.
Yes, the modern DNC has some conservative elements, but at their core they represent a liberal agenda.
The Democrats and Republicans couldn't more further apart on domestic, economic, healthcare, education, military and criminal justice issues.
I know Bernie progressives are really trying to discredit the DNC so they can take it over, just like the Tea Party and Freedom Caucus did to the GOP, but it's simply not credible to float the idea that both parties are simply different sides of the same coin.
If you're really against the idea of corporate money in politics, then progressives should really push hard for Democratic congress people to fight for campaign finance reform.
That should be Bernie progressives #1 issue.
As the rules are now, even new progressive candidates are going to accept money from big corporate donors.
The reality of most elections is the candidate who spends the most money usually wins.
To change that model so politically we operate more like Western European nations, you absolutely need to have campaign finance reform.