This idea works both ways. Russia is relying on North Korean artillery shells and Iranian drones at the moment to maintain its war effort. If that aid were to stop coming, it would be over in a week for Russia. His comments are a bit disingenuous, I think, and cut both ways.
Putin acts as if Russia is entitled to keep up its unwarranted aggression and Ukraine is not entitled to defend itself, in part by seeking help from other countries. The man is completely deluded.