Think of it like this, we as a civilization stand on the brink of collapse. Can we change it? Yes. Are we trying to? Yes. Is it working? Debatable.
About Lemmy, there's all kinds of people here. Those with the know-how segregated themselves into particular communities and blocked out all the rest. They're just quietly doing their thing wherever, with no fucks given about what's happening outside of that.
Beyond that, in my opinion, are two types of people left to roam the default maelstrom. Those without the know-how and those who thrive in the drama. The former are usually driven out by the dramartists.
I'd see it to be the same as in society. There's people doing their own thing, trying to be left alone. There's people just stumbling through life, not knowing what they want or need, nor the means to get them. And then there's the people who thrive through conflict and making things miserable for everyone else.
Both on Lemmy and in society, guess which ones usually end up in charge...
The answer though is simple. Get involved. Don't want to deal with the toxic waste? Well tough shit, because the planet's full of it. We're at the stage where we all have to clean it up. There's nowhere to run, nowhere to hide. Want to give up and run away? Good luck with that! When there's no more room left, all that toxicity will just spill all over you, no matter how hard you tried to get away.
As individuals, each of us is a minority. And if we keep running from the issues that plague us as a group, we'll never be allowed to thrive.