> The only somewhat free place I've seen is 4Chan but it contains so much toxicity, that's its barely bearable.

Here, you've solved it. "The free market", both users and advertisers, demand content moderation. If you want to attract users, you need a website that isn't a cesspool of 'toxicity'. If you don't want to drive away those who actually pay for your website (advertisers), you'll need to moderate.

Reddit has proved this out - they started out trying to say they're hands off, and they'll only remove illegal content (ignoring how troublesome that is to define for a global website), and they've slowly learned over the years that they cannot grow their website with those policies.

You could say that you don't want to grow your platform, and stay a small niche, which is totally fine. That's what gab and parlor and 4chan are. We have them already!