As for the concept of collective guilt, I personally think that it is totally unjustified to hold one person responsible for the behavior of another person or a collective of persons.
Viktor E. FranklUsually, to be sure, man considers only the stubble field of transitoriness and overlooks the full granaries of the past, wherein he had salvaged once and for all his deeds, his joys and also his sufferings. Nothing can be undone, and nothing can be done away with. I should say having been is the surest kind of being.
Viktor E. Frankl