One of the left's major tools is to falsely label their enemies as something already established as "the other." A lot of the time it means calling people "racist" and "homophobic" despite their actual views on race and sexuality.

Even if his lectures where homophobic, even if his book was transphobic, or white supremacist, or any other label the left can find, it should still be published, because free speech benefits all of us. If you hold someone's tongue, don't be surprised when someone holds yours.