I don't think that means he IS gay, but it is certainly a possible reading of the book.
Anything is a possible reading of anything, hence is the eternal cycle of academia.
And is also what makes all of it ridiculous.
Though the gay metaphor is not as on the nose as it is in, say, the X-Men. Which is almost explicitly gay.
Is all about Race and the differences of groups, not individuals. "Gayness" or the exploration there of is almost always explored in the context of the singulars relation to the many. X-Men is solely devoted to the differences in groups, not individuals, which makes it more about race, nationalism, and tribalisnm. Self-admittedly so.
And since it admits it's own meanings, other meanings are irrelevant.