The only way to deal with it is through splitting these companies up - that's the only constitutional way, and we must start immediately. They're too big.
The power in those sites is that they are not siloed and at scale, meaning you can reach a much broader audience. Parler would never be able to influence the mass market because it was so specialized - making it ineffective at evangelization. WSB would never be what it is without the platform of reddit. Going to a small specific site will not have the same power, even though I think it is better to host your own hardware and do that.