The entire purpose of nuclear armaments is to make certain wars too nasty to fathom engaging in. If their organization didn't exist at all, we'd still have exactly the same number of nuclear war casualties since the 1940s.
(Considering what's been happening in Ukraine and Palestine I would like for the Netherlands to obtain nukes. If we ever get invaded we can at least take out 50 million of the enemy with us to hell).
Definitely false. They were never the slam dunk that they were supposed to be, and it's true to say their effect has been significantly blunted. But that's not the same as "no effect". It's just turned out to be a comparatively mild one (but important nonetheless).