If we draw down, between the number of nukes we have now, and 0, there will be a global war. The actual number of nukes won't matter, humanity will be at risk of extinction.

The only ones at fault for where we are now are the GoP and Trump. They've destabilized the Middle East by supporting Israels settlements, taken every dime from Putin to do his bidding for decades, tore up Pacific treaties to stop Xi, while doing every thing they can to get Iran to give them a pretense to invade.