Its probably out of character for them, but the Nobel Commitee should make an announcement of things they consider disqualifiers for the prize to see if they can push him into relenting on his fascism.

You know, "we will not consider any leader as a candidate who imposes or utilises martial law to rule their country. We will not consider any candidate who orders international killings of civilians.
We will not consider any candidate that ignores their own countries constitutional protections when it comes to foreign nationals living in its territories, etc.