Dissenters nonetheless get treated by the same system that treats trolls and haters, by the people they're dissenting from. If there's a system that site moderators can use to globally block trolls and haters, they also use it to block their dissenters. Every time. If there's a system where you can stop me replying to you, it'll get used by people selling snake oil to block people from replying saying "hey this is actually snake oil". Every time.

And so the "solution" is to give dissenters free rein and thus trolls and haters free rein as well, effectively deplatforming all but the most pugilistic amongst marginalized communities as those who don't want to spend their lives fighting flee the torrent of abuse. Whether you intend it or not, that's a fabulous scenario for both active haters and those who quietly prefer that the marginalized not exist.

But even after they flee, it won't be enough — the new platform where they took refuge, having become popular, must be stormed. Any room where the marginalized congregate must be filled with the din of hatred. In short, it is not enough for Musk-era Twitter to be Twitter — BlueSky must also become Twitter.