Lee Gomes’s “Portals” column in the Wall Street Journal, usually addresses the question concerning technology with a boomer-friendly sort of phenomenology—as in, “gee whiz, look at this phenomenon!”—and little else. Today’s edition seems at first no exception: Gomes has discovered a YouTube “bulging” with all sorts of talentless novelty acts—actually mostly just one sort: pasty white guy incongruously singing and/or dancing—that become famous, in a way. But Gomes interviews some of…