You say it is not left/right, but then you cite the pie-in-the-sky ideas of Democrats while ignoring one of the main sources of our debt problem - the military budget. We spend far more on the military than any other country by an order of magnitude. That said, the biggest suckhole is mandatory spending (SS and Medicare). Not sure what you can do about that.
Of the stuff you worry about, which again - don't. I doubt that the net loss to the budget (if any) due to preventable illegal immigration is more than a rounding error*. Obviously, "medicare for all" would carry an additional tax, the same way different taxes were introduced to help underwrite Obamacare programs. I have not heard anyone propose guaranteed income without taxes to fund it.
Those proposals may or may not be goofy, but they should not be the source of your deficit fears. Instead blaming the Dem pet projects (that haven't even occured yet), why not blame the current state of affairs. We are in the middle of an economic expansion and are rapidly increasing the deficit, just so a short-term con artist can brag about bringing 2.9% growth one year. Does it take a HarvardMBA to figure out that lowering taxes and increasing spending will only exacerbate the debt issue?
*Right-leaning estimates are at $116 billion per year. However, you used the term "open borders". Since I don't know what that means, I'll assume you are talking about the absence of Trump's new wall. Since most illegal immigration does not come from people crossing the unwalled border, the cost of such entrants is likely in the tens of billions, at the most.