It's very difficult to use the concept of "virtue signaling" as a rhetorical weapon without conceding a whole lot of personal credibility. There's a reason that only a certain strange subset of people, people you probably don't want to associate yourself with, toss that term around casually.
I know how patronizing I sound writing this, and I'm sorry, but I swear to Christ I'm serious about the morbid curiosity I hold for people who think "virtue signaling" is some kind of devastating online bon mot.