Putin wants no part of dropping he next nuclear bomb.
Provide evidence to support that assertion.
You cannot prove me wrong.
To quote Ward, "So?"
We could prove you wrong in one of three ways:
1) He orders the use of a nuke (even tactical).
2) He writes that he is leaning toward using one (or more) publicly.
3) One of his subordinate exposes that intention, either preventing it or after the conflict is ended.
You, on the other hand, have absolutely no way to prove you are right and his words thus far don't support your position.