> As long as the West just limits themselves to kicking Russia out of Ukraine, then I don't see how that becomes an existential threat to Russia, and why it would warrant nukes.

Literally in the comment you are responding to:

>> This does mean Ukraine destroying Russian nuclear delivery systems a while back was directly useful, makes it easier for everyone else to help them.

Also: https://www.armscontrol.org/act/2024-07/news/ukraine-strikes...

It is quite clear what "the West" doesn't limit themselves.