The point is: look at the way the countries who have them act towards the countries that don’t, vs how they act towards each other.
I’m not a fan of them existing, naturally, but they do exist, they are relevant, and so having the capability in a couple of European nations (even Brexshitted ones) is probably better than not. Especially as the US is going full mental.
I can see why Iran wants them.. and the lengths that the US is going to prevent that also speaks volumes. I guess it’s an open question whether an Islamic/Middle Eastern power having nukes would temper the western shenanigans in the Middle East or be the starting whistle to the end of the world.