I am slightly surprised Ronaldo would be interested in Jordan Peterson. Ronaldo always seemed largely disinterested in any kind of social or political issue, like getting upset when asked about FIFA corruption and saying his teammates don't talk about it, they talk about shoes and watches.
Also, as I'm here, might as well confirm that I think JP is a complete nut job and charlatan now. It's a shame, because his early stuff was very good, referring specifically to his lectures (the actual psychology lectures in his Uni classes, filmed before he shot to fame, not the entertainment lectures he has done since on a broader range of subjects). He's lost his mind completely.