I've done some research, and I think he's okay. Mike Matei has his own bullshit going on, but James has never said anything about his own political or social views, as far as I know.
Besides, he makes a point of ensuring that his content is as apolitical as possible, which is admirable.
His reputation was tarnished when he boasted about his penis size on social media, complete with him showing a picture of it on the official Cinemassacre subreddit, and deleted comments mentioning the incident, his mishandling of fan favorite Bootsy and Kyle Justin's departure from the site and censoring conversation about them, his antagonistic behavior towards fans who disagree with his opinions on both YouTube and Twitter (going so far as to demand that someone unfollow him for questioning his stance on Disney and superhero movies), publicly taking an antagonistic view towards save-states and rewind features in emulators that was criticized as gatekeeping, claiming the creators of Mortal Kombat modeled The Joker from Mortal Kombat 11 off his take on AVGN (which many saw as narcissistic), and his poorly made edgy webcomic The Loco Bandito coming to light (although he has since apologized for said comics).
Not as bad as I remembered, with my dodgy memory, but still not great.