Comment by mrguyorama

Limiting Nuclear proliferation was already fucked.

Trump tore up Iran's "we won't do nukes" deal, doesn't matter whether you think they were genuine or not, it demonstrates we will go back on a deal so our word isn't worth anything.

Ukraine shows that the west will not actually protect you like they claim, so your only option is getting nukes to really deter people.

North Korea and Pakistan demonstrate that you can pretty much do whatever you want with just a couple nukes, the west will cower in fear over idle threats.

No country would look at any of this and conclude that they have any choice but to build nukes to protect themselves.