During the protest the little wannabe fascist actually did a fascist/communist salute. The clenched fist of totalitarianism. This of course went over about as well as you'd expect with lots of mocking meme for little-Hitler.
While it isn't a crusaders job to fight EVERY fight, if they're too selective, they can look hypocritical. Like Hogg having a huge problem with a virtually non-existent problem of school shootings (which are infrequent and low death count relative to other high school risks), while ignoring a mass shooting at YouTube (by Nasim Aghdam), because it didn't fit the disingenuous narrative: it was a woman, she didn't use an assault rifle, and like at Hogg's High School, the cops had ignored many warnings by family members first. So nothing but crickets from Mr. Piggy.
There's some real irony that a kid demanding gun control for the rest of us, shows up everywhere with Armed Security. When he's old enough to get irony, he'll laugh at himself: http://www.thetruthaboutguns.com/2018/08/john-boch/having-fun-with-david-hoggs-useful-idiots-at-saturdays-nra-protest/