I’m not sure what Russia has in the way of similar besides drones.

Russia has actually gotten quite good at drones.

But the Jeep vs. tank comparison is bunk, especially the direct dollar value comparison: Your million dollar tank shoots way further, hits way harder, and its crew will survive when hit. Instead of having to train a new one and write letters to their families you now have a veteran crew that probably learned an important lesson.

We're seeing the opposite approach on the Russian side -- have cheap tanks that blow up easily and take out the crew with them. They have lots of tanks, and also lots of people (at least in principle), but they don't have nearly enough training capacity to teach new crews.

Even if Ukraine wanted to it could not afford that approach. Neither in terms of manpower, nor in political terms: As we all know war is the continuation of politics and not employing Soviet meat grinder doctrines is very much part of the whole not wanting to be Russia thing. If Ukrainians wanted to be subject to Dedovshchina they wouldn't be fighting in the first place.

Why do they even need the M1 tanks?

Numbers. Abrams are a pain in the arse for logistics but there's a ton of them around collecting dust in the US, Leos and everything else are in way shorter supply.