Using Ukraine to offload old weapon systems, fund the US military industrial complex, test weapons in a peer to peer scenario, and destroy Russia as much as possible through Ukrainian deaths rather than American.
The fact that you keep ignoring is that Ukraine is asking for the equipment. NOT asking for any boots on the ground but their own. They are willing to fight this war, they need equipment.
Not just the President of Ukraine or the government, but pretty much the whole of civil society.
I am not so sure who is using who at the minute, but sure. What's for certain is that the Russian military, such as it was, is suffering heavy losses, with plenty of busted myths (invulnerable hypersonics, indomitable Armata etc...). It's a good return for the USA helping Ukraine, no doubt about it.
Turns out Russia are a second tier military, who was halted by previous generation US handheld anti-tank weapons and Ukraine are holding their own using second tier equipment for the most part. Turns out when you put loyalists in charge of the military, they might not be so effective. All the bloviating nonsense coming out of the Kremlin turned out to be hot rectal air.
As for a cease fire, sure, so long as Russia doesn't use that time to reinforce their positions in Ukraine. Because they are occupying Ukrainian land. Would it be acceptable to give up that land (because that is effectively what a cease fire would accomplish, no matter what the "talks" determine)?. Russia understands only strength and force, whether they are using it or recieving it. Giving them a chance to strengthen while "talks" are ongoing only strengthens their position. As we talk Ukraine is encroaching on Donetsk airport, occupied since 2014. Continuing to weaken Russia creates a better position to negotiate from.
And Russia reneged on a prior treaty with Ukraine too, so it's not like they are trustworthy. They have already openly stated Ukraine has no right to exist.