Net Neutrality means handing control of the internet to the government. Regulatory capture and special interests will ensure any Net Neutrality legislation is an unworkable mess that sets investment in the internet back decades.
For video things would be even worse. Do you want Congress telling Amazon which video formats they have to use, and which formats the devices they sell must support? When Amazon doesn't want to support some proprietary standard that congress members got bribed to pick then the thugs with guns will turn up at Amazon HQ and Amazon will be unable to defend themselves.
We know that markets are inherently self-correcting, we just need to have patience.