You cannot compare Russia invading Alaska to Russia invading Ukraine. That is not a good thought experiment as it ignores various geopolitical/military realties that cannot be pushed aside. America has a strategic nuclear force, while Ukraine is an impoverished/corrupt former territory of the Russian Empire/USSR and shares a direct land border with Russia. Those two countries have linked histories and people, that cannot be ignored.
Dude let me ask you something, at what point is Ukraine's refusal to negotiate/surrender considered simply reckless? Nothing short of them getting nuclear weapons or having foreign armies within their territory is going to save them in this war. We are talking about a country the size of New Mexico and Arizona trying to outlast a country that spans two continents. Russia has more people and more resources, and the Russian people are resolved to seeing this conflict through because they view this war as an existential threat to Russia's sovereignty.
Everyday the Ukrainian government refuses to negotiate means more dead soldiers, more dead civilians, and more wrecked infrastructure. They will be forced to surrender either conditionally or unconditionally. The longer they wait, the more the pain will be afterwards.