From Fox:

“The issue of oligarchical control over the Internet and all the impact over the ability to use it for free speech is going to only get worse,” Kasarda told Fox News, alluding to the “big five” — YouTube, Google, Facebook, Twitter and Instagram.
“It is unclear what the rules are,” he added. “Specifically, with YouTube, they pretty much enforce whatever they feel based on their bias of the day. Regardless of your personal belief, firearms and their accessories are legal in the United States. So why are we seeing continuing restrictions and challenges towards content about something demonstrably legal yet not against that which is clearly illegal?”