I don't see a lot of value in this line of argument, but want to make several things clear. You impute a single national identity to the plane designers and engineers based on their physical location. Setting aside the fact that the construction bureau itself was relocated to Kiev from Novosibirsk in the late 50s, the people who worked there came from all over in the Soviet Union. Tolmachev and Antonov certainly did not have the national identity you impute.

Regardless, it was a Soviet engineering outfit, not a Russian or Ukrainian one. Just like Chernobyl was a Soviet project and failure, not a Russian or Ukrainian one.