Conor has no concern for the Iranian people, he's concerned about the political ramifications at home if Trump was able to liberate the Iranians without troops on the ground.
Conor is not with the Iranians celebrating the death of the Ayatollah, Conor is with the lunatics protesting the death of the guy who just slaughtered 30K Iranians.
It's like Queers for Hamas or Feminists for Sharia Law, don't try to make sense of it.