Look in the mirror? Your Bernie Bros jibe is... laughable really.
I just find your stance... contradictory? I mean, ok, lets take health care. Certainly I agree with you that having the GOP in control is a major problem for your access to health care. I 100% agree that it is horrifying that they posses the ability to, through policy, make it unaffordable/ impossible for you to get medical treatments you need.
But what alternative do you propose? The current system of free markets does not work. Yet the only other alternative available is at the governmental level. So your options are between a party that wants to make universal coverage for all, and one who wants to let the markets screw over select groups. So how, in that scenario, does this equate to dropping the DNC? What sensible world does it compute that you would instead support the party actively interested in your healthcare being stripped entirely? I'm sincerely asking because choosing to leave the Democratic party if they proposes something like a Canadian style universal healthcare system seems mind bogglingly foolish to me. Like I literally do not understand what better alternative you see.
As for college, well, just because you and I got fucked over, doesn't mean we need to keep fucking over every new generation ad nauseum. I am only marginally older than you, paid for my own schooling completely, and had plenty of student loans as well. I also spent years going part time and working full time to pay as I went. I am damn aware of the cost of college, and I can see the system is headed for collapse for a bunch of reasons. And, for the record, I thought Bernie's proposal was incomplete. It was an insuficient/ incorrect partial solution. That said it is better than the current trajectory. But there are a dozen other ways I could see to improve the system. But, again, we need to start addressing this problem now. College costs too much, and the prospects for those without a degree are too dim. This requires a multi axis plan of attack. Create other avenues for success (trade school, training), setting costs at more reasonable levels, a change in corporate culture that says you need a college degree to get a job as a janitor or secretary, etc. Oh, and changing the current economic system that has destroyed the working class by funneling greater percentages to the top 1%.
Honestly much of the pressure could be alleviated by making it so a college degree was needed to provide a bare minimum sustenance for a family. Which ties in to a bunch of things about the changing economy. The decimation of manufacturing jobs because of automation has meant that a greater percentage of people are are working in (low paying) service jobs than a generation before. One possible way would be Universal Basic Income. Which is eventually something I see we should do as a replacement for many welfare programs (though probably not all). Making it so everyone has enough to make a meager living means that no longer is a high school diploma a death sentence. You'd have enough to get by working those low paying jobs. Yet getting a degree and a better job improves your lot in life.