Describing the options available currently today is not a helpful contribution here, and seems intended to silence discussion of something considered unjust by others. Beyond the facts you've cited — as a private company, Amazon owes no duty of 'guaranteed platform' whatsoever — is there anything else you're able to contribute to this discussion? What are your views? Do you agree or disagree with the "simple" circumstances you cite? Do you consider Twitch's actions likely to promote injustice against minorities?

The parent comment you're replying to notes, correctly, that the behaviors you label "corporate libertarian" are the choices available today. It's not valid to infer and label the beliefs of the poster of that comment for describing these choices under the current US situation, even if those choices seems unjust and cruel, as it's entirely possible they don't agree, or they have more nuanced beliefs, or maybe they're just bitter today for reasons wholly unrelated to the topic at hand. You could instead indicate that what they describe is precisely the circumstance you wish to change (you do wish to change that, right?), and maybe you could even go into detail how you'd change it (would you pass new laws? what would they say?), and what approach you think would be effective for making that happen. Anything along those lines would be valuable and relevant.