This isn't true though. Alex Jones can disseminate his message through countless other websites, which have their own users. This is really just advocating for equal exposure of opinions, which isn't a free speech issue.
i can post a comment on FB and get 0 likes, that doesn't give me equal exposure to the latest nike video on their page.
denying opportunity for exposure is giving that platform the ultimate authority on what shouldn't be able to be exposed in society, if society is reliant on that platform.
i don't want alex jones to have exposure, but i don't want an exec deciding what's next on the chopping block. a page suggesting publicly available employee salaries? they shouldn't have that power
If we're talking about internet providers, that's a different issue, since they are a user's conduit to the entire web. Those absolutely should not be able to choose which accounts to favor.