again, if you look at the whole system in aggregate, the existing practice is for GooFaceTwitBaba to farm out their moderation works to subcontractors, while also bending backwards to prevalent political headwinds to preserve their shareholder value. If users feel that the moderation is inconsistent with their content desires, they are free to leave the megaplatforms and become approximately completely irrelevant, thus achieving the exact same effect as being deplatformed.

What is your alternative system?

It's very easy to point out that nothing is perfect. It's very difficult to come up with a better solution.