And today Ukraine is doing quite amazing, considering 12 years of war. I can only dream what it would be if russians didn't steal a generation. Giving up nukes was a giant mistake.
Back then, giving up on nukes never was about compromising security. In 1993, I remember being full of hope and opportunity to live in peaceful world with less nukes. It felt like we had our backs by France, UK and USA. That was a move full of betrayed optimism, not desperation - giving up third world arsenal because the future is bright.
And pretty sure people who built those ICBMs and strategic bombers would have no issue maintaining them.
USA didn't pressure Ukraine into giving up nukes, at the same time bankrolling russian nuclear program for 'security' reasons.
However, a lot could have happened in two decades, and Ukraine had to go through many issues typical of post-Soviet countries at the time. The risk associated with warheads being sold by generals or oligarchs was seen as a real one, see for instance:
https://www.armscontrol.org/act/1997-09/press-releases/russi...