They always were belligerant, untrustworthy, lying bullies.Yes, and that's worked out great for the Kims for almost 70 years now. We haven't exactly given them an incentive to change or reform.
It's impossible to exaggerate how badly we botched our handling of Libya in particular. After watching what happened to Gaddafi, there was literally no other option for Kim besides an all-out push to develop nuclear arms.
Iran, not being a country populated exclusively by idiots, will be doing the same.
The US simply cannot be trusted regardless of what party is at the helm, and that's a huge problem for us as well as anyone we're doing international business with.
