As long as even one leftist lives the ideology lives. In India there are quite a few Left groups. And in Pakistan too there are quite a few leftists. BTW you haven't yet debunked Arooj Aurangzeb like you had promised.
My ideology calls for a scientific, harmonious existence of humans. What is delusionary about it ? Don't you want humans to live harmoniously ? Do you want a perpetual war state among countries ? And within them they having an dominance of the money system ?
I quote from
my thread about someone who decades ago found commonality between Islam and Communism :
What would you have said to these Muslims from nearly 100 years ago ?