Well that's the thing, it's not really an issue of free speech. These people didn't get kicked off the internet. There's nothing stopping them from paying for their own hosting and posting all the videos they want. Let's say you made a site called awesomepupperpics.com for people to post people of their puppers that you're paying for and people start posting pictures of their cats. Is it your responsibility to pay to host those cat pics? No. Are you violating cat owners rights by deleting those cat pics? Also no. You as the owner and proprietor of awesomepupperpics.com also have rights. No one is saying people can't post cat pics on the internet just not on awesomepupperpics.com because puppers are awesome.