I followed his wikipedia article to another link.

March for Our Lives (MFOL) is a student-led organization which leads demonstrations in support of gun control legislation.

As astroturfed as they go. I remember my local newspaper reporting how the local high schools gave their students a sanctioned recess to "protest". At least some of the kids in the more politically mixed town counter protested. If kids really had virtue, they'd get a bunch of covert Goatse signs for the photo ops.