Sikhs can be a stubborn lot bro!
I would say though, let's be real. Khalistanis exists (the majority of them being in the UK and Canada, barely any to speak of in India itself which begs the question how will so few non-Indians carve out an independent country in India, but that is a question for another time) I would say 70-80% of these remaining "Kalistanis"
pleasantry
would be completely pacified and give up on the "cause" if the atrocities of 1984 were PROPERLY addressed. And by this I mean the true perpetrators behind bars where they belong.
The 1984 riots are a MAJOR source of pain in the Sikh community to this day and a major cause that the hardcore Khalistanis beat to death and use to further their own agenda. Bring justice to them and even the few Khalistanis abroad will give up on this joke.
I am hoping and praying that the next GoI who ever they are bring some belated justice to this case.