They are asking for too much
This is typically American and European, asking for unacceptable concessions.
Iran accepts for example to fulfill the simple JCPOA with AIEA insepection, no, that isn't enough for the west, they will ask you to dismantle every nuclear related sites, dismantle all your missiles and air defense, as well as to cut ties with all Iran allies in the region recognizing Israel (btw he is implying that Iran should dismantle all the missiles that could reach them) and eventually "we will remove the sanctions"
Typical white behavior, remember Reza Khan and his 60yrs long deal for oil? These regimes will never stop squeezing weak states, make protectorates, if someone doesn't want, enjoy your coup and your massive sanctions as well as threats of war every week and using "Human rights" as an excuse
Back when the Americans were genociding Filipinos, their excuse was "We want to educate your people to be like in our world"
2023: "We want to free your people and gift them democracy"
Same excuse, just formulated in a different way