Should social networking sites censor hate speech?

The US Supreme Court has ruled on multiple occasions that hate speech is protected by the First Amendment of the US Constitution.  Unfortunately, it runs rampant on social networking sites, with users claiming their right to free speech.  However, users of social networking sites agree to follow the site’s rules, which may be much stricter than the First Amendment.  Many have called for social networking sites to monitor content and remove offensive messages, while others argue that users are not forced to read content that they find offensive; they are free to scroll by or unfollow.

NOTE:  We will use “social networking sites” here to mean any forum in which users post, like, and comment.  This may include websites and online newspapers/magazines, as well as traditional social media like Facebook and Twitter. 
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