Obviously, Charlie Kirk isn’t ignoring young people. There are Republicans that go to Turning Point events that fail to energize attendees. For example every presidential candidate except Trump, Ramaswamy, and the ones don’t show at all.
Turning Point is doing yeoman’s work. I get the impression those running the RNC view Turning Point the way McConnell and company viewed the Tea Party movement—a threat once there was realization it could not be co-opted.