The ACA was an attempt to make the current health system a little better. Sure Biden promotes it, but that doesn't mean he's championing the health system overall. You probably already know that the ACA was originally based on a Republican health plan. Obama went with this rather than Medicare-for-all because he thought it was the only way he could get Republican buy-in to pass any kind of health improvements for citizens. But even so the Republicans demanded all kinds of concessions and watered it down so it ended up being way less effective than intended. The bottom line here? Health care affordability problems are because Republicans don't want to fix them.
We already have a raping, pillaging, murdering force rolling west. It's called Russia. It's not unstoppable though. The Ukrainians have proved that. Let's give them more aid. Lots and lots of aid.