Didn't work *for you*. Twitter worked great for the Black people that finally had an outlet for highlighting racism.
And advertiser model or no editorial board, are not what made Twitter vulnerable to a fascist takeover. What made Twitter vulnerable to a fascist takeover was the fact that one of the world's fashiest dudes was rich enough to buy Twitter on a whim. Billionaires can and have bought newspapers on a whim too.
I agree that Mastodon isn't as vulnerable to billionaire drunk purchases, as there are too many little pieces to buy. It's like squeezing jello. But again, by percentage, there are more fascists on the Fediverse than on Twitter, and it's not particularly close. And the abuse Black people experience on the Fediverse is worse than on Twitter and in other places. The Fediverse isn't magic.