Look, it's already Habbening.
Box office receipts are dismal. If it wasn't for Disney pumping out Marvel and Star Wars blockbusters with built-in revenue, Hollywood would be begging for yet-more subsidies. Piracy, direct-to-video streaming, and other innovations have gutted the profit margins.
On top of this, recent releases with "messages" have ABSOLUTELY TANKED. See: mother! and Al Gore's Inconvenient Truth 2. In the entertainment biz, you're only as good as your last picture performed. And with the social climate as it is right now, releasing anything "controversial" is deadly.
A boycott would add to the pain, but it's almost redundant, at this point. Their financial strings are getting cut, one by one.