> There was still a basis on which talks could have been opened up. The fact they were entirely nixed shows they are not interested.

It is important to note that the party least interested in a workable peace deal at this point is Russia. After all, they annexed last October a large swath of Ukrainian territory in such a rushed manner they couldn't even properly explain what they annexed. Given that Russia seems uninterested in any peace deal which does not include Russian annexation of at least some portions of Ukraine, any argument that what Russia really cared about was NATO enlargement is laughably incorrect.

There's nothing to negotiate at this point. Either Russia moves its guns and tanks and soldiers out of the whole Ukraine like they retreated from around Kharkiv, or Russia gets defeated on the battlefield. Anything else would leave Ukrainians in occupied territories to be wiped out by Russians. Russian hopes of a favorable peace deal is nothing but a coping mechanism, just like top Nazis hoped to reach a peace deal in 1945. Better prepare your cyanide pill.