I dont understand the point the OP is trying to make. And the distinction between white and blue collars is unclear in this context.
Are mathematicians also blue collar since it seems they are being replaced as well? Are electricians white collars then since they are not?
Is knowledge work the hallmark of the white collar? It doesn't seem to stand to scrutiny: being an electrician seems to require a lot of knowledge, whereas some managerial roles do not in some cases.
All in all this seems like a pretty pointless discussion to be having. One of those language games people like to play (are we stochastic parrots as well?) and that dont bring anything of substance to the debate of ideas.