It sounds like you're saying that they either have to host absolutely any video anyone uploads, or else stand behind every video as if they made it themselves.
I don't see how a video platform could exist on those terms.
But it still sounds to me like you're demanding that, after removing illegal videos, a site should either be 100% curated or 0% curated.
https://www.tubefilter.com/2019/05/07/number-hours-video-upl... says:
> The platform’s users upload more than 500 hours of fresh video per minute, YouTube revealed at recent press events.
100% curation is unrealistic in that case. They could crowd source the work, but it's hard to see how they can be legally accountable for what users mark as OK.
But 0% curation would mean that they're forced to host videos they consider repugnant. Imagine starting a video sharing platform, having your business grow, and one day being told "well now you're big enough that you no longer get any say in what your site hosts."
I don't like the sound of government interference at all, trust me. However when people are being silenced and demonetized because they hold political views that YouTube doesn't like I feel that it's necessary in order to uphold the users constitutional rights. Many experts have speculated that YouTube operates at a loss - is it fair that they gain market dominance this way and then flex their power to remove ideas they don't like?
User's have no constitutional right to political speech on a private platform. Their rights are not being violated.
YouTube doesn't have "a strong grip on societal discourse", it's a glorified video sharing site that's widely regarded as a cesspool in terms of discourse.