Hmm, sounds very suspiciously similar to MS's argument from twenty some years ago for why they couldn't "disentangle" Internet Explorer from Windows the OS during their monopoly trial.
It would be quite extraordinary if the stack (software and hardware) that made up borg clusters was split into several distinct worlds. Or if Search and Ads were built from different repos that didn't automagically share protobufs.
if chrome needs it to run, then its a piece of chrome and has to go along with all the rest, so put the walnut shells and dried peas away