Could Harappan be the Karpans?

It is often said Indus Valley Civilization (IVC) has mysteriously diseappeared and the reason is not known.
I hypothesise a line that can decipher the story, narrative, and lineage.
I hypothetise:
Indus Valley Civilization : Harappan → Karpan → Korpan ~ Qorban → Kirpan.
©

It may be wrong, but eve in that case, it can be an invitation to work on such hypothesis. I am neutral.
But this links two mysterious curiocities IMO: Karpan, historical Zoroaster, and reccently, IVC.
If incorrect, I hope this conrtibutes in examining similar possibile accounts and explanations. A proto- version of a better account/narraytive.

Zarathusra's movement probably affected disappearance of Karpans' traditions, and if above is correct, of what we call Indus Valley Civilization. ©
I has this idea. and suddenly I noticed the verbal smilarity: Harappan : Karpan. قربان قربانی korpan karpan Harappan I may help connect a few lineagesg, and help hint about some ooportunities for filling in the blanks from cross-lineage evidences. PS. Order of noticing:

Zarathustra
Early Zarathustra
Mention of Karpan
Human sacrifice
even animal sacrifice: A possible grand schism
Hypothesis of Karpan-Qorban; as a possibie regression
Kirpan daggers
(possible Abrahamic connection)
Now: IVC
(btw, fire?!)

next: "Found it! Karpan?" and hence, campaign against them?
Then: The verballexical: Ha->Ka.
Then: Connection to Siksm.

Remains to be understood: timeilnes (seems to contradict). (post hoc)



PS2. Another similar schism: rom/helen vs per/elam.