Djokovic hasn't endeared himself like Federer and Nadal politically in tennis circles.
Nadal was asked, point-blank at a press conference what he thought was the reason for the pay disparity in tennis. His response (sic) was that he didn't know the reason, just as he didn't know the reason male models earned considerably less than their female counterparts and asking the reporter why she wasn't inquiring about that. GOAT is, as far as I understand, about how good they are at the sport they practice, innit? This ain't a popularity contest.
Was Tigger Woods a worse golfer because of what he did outside the course? Was Maradona? Ty Cobb? Tyson? Jon Jones? Mayweather? List is endless. If what you did outside the field mattered to become the GOAT then you could just put some gloves on Mandela and argue he is better than Mayweather. See how silly it sounds?
You tell me it matters to sponsors and the people. Fine, agree, but that's a different conversation.
But since the subject is on the table, considering the data we have today (on viewership and the popularity of both sports) asking for equal pay is ludicrous. When two athletes can't compete against each other, it's just not the same sport. Similar, almost identical, but not the same. Just like two boxers from different categories. Have you heard the lightweight champion asking for the same pay as heavyweights? Course not, it's ridiculous. The sport is not as popular, that translates to viewership, that to revenues and that to pay. And that is just one of the reasons.
Want equality? Stop having two different sports and have them all in the same competition. No discrimination by sex, gender, etc. Have today's best WTA player lose to a 500th ranked unknown guy (and get paid accordingly). See how that goes for them. Do you know why sports were divided between sexes (not genders) to begin with?
I understand Novak can come across, well, "unlikeable" is the word that comes to mind. The fact he gets compared to Nadal and Roger, two rather likeable guys, doesn't help. But that is not the issue here, is it? He's an idiot? Let's assume so ( I don't think so but allow me to concede for the sake of the argument). So what? Are we talking about the role model influence they have or how good are they at what they do in the pitch, field or court?
I get the antivax thingie is undefendable, plain stupid, but the hitting of the lineswoman, dear me, that was an accident. Nalbandian's hitting of the linesman, now that's undefendable, but Djokovic's? That was completely accidental. I understand the rules said he had to be disqualified, and he was, but bringing that up as a negative personal trait is unfair, to say the least.