[chucker]

Regarding Ben Rhodes's third point, the "historical" reasons, the Kenyan UN ambassador had this to say (emphasis mine):

Kenya and almost every African country was birthed by the ending of empire. Our borders were not of our own drawing. They were drawn in the distant colonial metropoles of London, Paris and Lisbon, with no regard for the ancient nations that they cleaved apart. Today, across the border of every single African country, live our countrymen with whom we share deep historical, cultural and linguistic bonds. At independence, had we chosen to pursue states on the basis of ethnic, racial or religious homogeneity, we would still be waging bloody wars these many decades later. Instead, we agreed that we would settle for the borders that we inherited, but we would still pursue continental political, economic and legal integration. Rather than form nations that looked ever backward into history with a dangerous nostalgia, we chose to look forward to a greatness none of our many nations and peoples had ever known. We chose to follow the rules of the Organisation of African Unity and the United Nations charter, not because our borders satisfied us, but because we wanted something greater, forged in peace. We believe that all states formed from empires that have collapsed or retreated have many peoples in them yearning for integration with peoples in neighboring states. This is normal and understandable. After all, who does not want to be joined to their brethren and to make common purpose with them? However, Kenya rejects such a yearning from being pursued by force. We must complete our recovery from the embers of dead empires in a way that does not plunge us back into new forms of domination and oppression. We rejected irredentism and expansionism on any basis, including racial, ethnic, religious or cultural factors. We reject it again today. Kenya registers its strong concern and opposition to the recognition of Donetsk and Luhansk as independent states. We further strongly condemn the trend in the last few decades of powerful states, including members of this Security Council, breaching international law with little regard. Multilateralism lies on its deathbed tonight. It has been assaulted today as it as it has been by other powerful states in the recent past. We call on all members to rally behind the Secretary-General in asking him to rally us all to the standard that defends multilateralism. We also call on him to bring his good offices to bear to help the concerned parties resolve this situation by peaceful means. Let me conclude, Mr. President, by reaffirming Kenya’s respect for the territorial integrity of Ukraine within its internationally recognized borders.

TL;DR: yeah, it sucks that borders are the way they are, and that's historically unfair, but more wars aren't gonna make that better.