It's a problematic statement because you assume that all presidents are the same. Trump gets called out more because he's simply the worst president ever, at least in living memory. He's the least qualified one, the least experienced on, the most combative one, the most vain one, and as this Russian affair might reveal, possibly the most corrupt one. Of course he gets called out more, what do you expect? Do you figure that the media should criticize all presidents the same amount?
Cousins has 19 technicals this year while Hayward has 0. You figure it's the refs not treating them the same or maybe Cousins just does more stupid **** that is punishable by a tech than Hayward does?
While some of this may be true parts of it are nothing more than your personal opinion.
I find faults with arguments like this as it implies it is either/or. I don't think it is.
I think that both sides are antagonistic and petty towards the other.