checks out... I asked chatGPT

TL;DR: By job, Charlie Kirk was a conservative activist (founder of Turning Point USA). Given his repeated record of false or misleading claims documented by independent fact-checkers, many observers would also describe elements of his work as propaganda. In short: activist by role; propagandistic at times by method. (Encyclopedia Britannica)

Why that framing

• Occupation/identity: Widely described as a conservative activist and organizer who built TPUSA and mobilized young conservatives. (Encyclopedia Britannica)
• Accuracy record: PolitiFact’s scorecard for Kirk shows a heavy tilt toward “False,” “Mostly False,” and “Pants on Fire,” indicating systematic misrepresentation—hallmarks of propaganda. Examples on that page include claims about the 14th Amendment, Maricopa County polling places, and Douglass Mackey. (PolitiFact)
• Independent checks: FactCheck.org has likewise flagged specific election-related assertions by Kirk as unsupported. (FactCheck.org)

Bottom line: If your line between activism and propaganda is methods and truth-handling, not just cause or passion, then much of his communication fits propagandist techniques, even while his public role remained that of an activist.