If Exhale Confusion and Delirium stops Invaders with Strife from participating in Ravage, does Spread Tumult and Delusion still use that Strife to stop Dahan from participating as well?

If Exhale Confusion and Delirium stops Invaders with Strife from participating in Ravage, does Spread Tumult and Delusion still use that Strife to stop Dahan from participating as well?

Yes, which pieces are participating in Ravage is determined simultaneously. There is no point at which the Strifed Invaders are not participating, but it's still undetermined if the Dahan will participate.