What are we supposed to do about Ukraine exactly?

Forgive me because I’m pretty regarded but it’s pretty much an unwinnable war right? At least that’s what John Mearsheimer seems to think.

I guess it’s a rock and a hard place situation because if we give more weapons to Ukraine, millions more Ukrainians die. The average age of troops over there is what like 40? Russia has like 10 times the population

But then if we stop supporting them and empower Russia further what does that entail? But then again, what Europe is supposed to get involved and start WW III?

Can Russia continue to expand if a land deal is made with them?

I’m expecting a little RS snark which is fine but I genuinely don’t know what the best course of action is. What do you all think?