So you think that we should have the US be the ultimate authority around the world, bombing anyone who steps out of line even a little, deciding for all other countries? Killing civilians even in countries that couldn't pose a threat to us? Is that the conservative policy that you follow?
Even though I think what Russia is doing is morally wrong, that doesn't mean it is the job of the US government to do anything. The alternative is even more anti-libertarian. You cannot create utopia, and the attempts always end in tyranny and death.
Biden's strategy is indeed correct, and I am glad to find that you agree with him on at least this point. He is joining the majority of the international community in supporting Ukraine without actually using force to intervene in the affair. He has avoided even being so presumptuous as to visit in Kyiv, which would have really been ill-timed: it would have been somewhat appropriate if he had happened to be over there when the other leaders in the region dropped in for a visit, and he could have gone as part of a larger group, but dropping in on his own would have implied that Ukraine was a vassal-state of the US, which is a narrative that we are actually trying to counter.
I do support Ukraine, but that is only because I support anarchists everywhere. "Cossack" means only someone who is free. "Cossack" means someone that wants to live in a wild country full of opportunity. I realize that the term is outdated, but it would not be if Sophie...excuse me, Elizabeth...had not destroyed the Cossack Hetmantate, which was actually a very good government that was attempting to follow a similar path to that of Sweden under Ivan Mazepa's leadership.
However, no nation has ever been an island. During the Coalition Wars, those countries were only able to resist the imperialism of Napoleon because they united in coalitions to stop him. If they had followed isolationist policies and said, "Another country's quarrel is not my affair," then that would have suited Napoleon perfectly well. He would have merely continued his policy of conquering them one by one, and he would have been very glad toward them that they had so nicely let him set himself up as a despot.
I am very much a supporter of John Rawls' views on Law of the Peoples.
Mind you, Napoleon was a far-left leader, but his authoritarianism was a problem.