PhD grad rejects diploma
thevarsity.ca
thevarsity.ca
Given that he did fulfill the requirements for the degree, I suspect his knowledge means he won't have much of a problem finding a job or perhaps a research post at another university.
Meaning that the degree has, in fact, been conferred.
Whatever evil he is protesting, as a product of university, presumably there are others that feel the same. He might very well have endeared himself to them, making it easier to find a job.
Further, while he might be seen as difficult by some, he might be seen as a champion by others.
If nothing else, it might just have assured him that the place he finds employ will be a better fit than before. Those biased against him or his cause won't entertain the idea of employing him, while those that do are likely to better align with his ideals.
In practice, you may be right -- he might have a difficult time, but now that he's (in)famous, I think those doors will open.
Omarosa (of "The Apprentice" fame) has found gainful employ after repeatedly portraying herself as an indignant, hard-to-deal-with bitch on a number of reality television shows.