Yes... It would be foolish to assume Putin is bluffing on nukes...
But the Ukrainians are facing the end of THEIR world, they can be forgiven for advocating that the risk of ending THE world is acceptable if there is a chance it might save them.
The talking heads on TV (reporters, former US generals, politicians) advocating for NATO and US to enter the war with no fly zones and direct attacks on russian forces have no excuse for such statements...
