Well said:
My advice to the US and all countries involved in the JCPOA negotiations is to separate talks from all other issues. This was already well understood by all parties, although both Iran and the US continue to try to press items unrelated to the JCPOA talks. This is foolish and unnecessary – if the deal is truly a priority for both parties, they should and must make actions meet rhetoric and policy objectives in a strategic fashion. Instead, we are witnessing both sides offer reactionary responses that only hinder talks.
There will just never be any progress on the nuclear situation with Iran until they are willing to look at it only in terms of what is the likely outcome.
Because the Americans are unwilling to do so, you can actually expect the issues to persist indefinitely.
https://en.irna.ir/news/85048211/Nuclear-talks-should-be-separated-from-other-issues-American