The claim "RFK Jr. does not cut off the phalli of dead roadkill" is not an evidence based claim because studies have not ruled out the possibility that RFK Jr. severs the phalli of dead roadkill. Nor have studies ruled out the possibility that RFK Jr. is fornicating with Mitch McConnell's corpse.
The claim “RFK Jr. does not fuck chickens” is not an evidence-based claim because studies have not ruled out the possibility that RFK Jr. fucks chickens.