It is driven entirely by the moderators. r/Canada got taken over by alt-right moderators which attracted alt-right redditors.

It's a more techy community since that tends to be early adopters. They tend to lean pretty heavy left and are more informed. You still have the techys with anime profile pics and are 4chan/incel that are right wing though. They get defederated really quick though.

Lemmy started off as much more left-wing, to the extent that it had a hard-coded slur filter that only recently was made something configurable. The choice of .ml has been proposed as being chosen because it represents "Marxist Leninist" (and I don't know if that's true or not), but many of the original instances were highly censored.

That being said, I've been both left and right and presently I'm more right wing, and a lot of the time I write up some big screed in response to something dumb or evil and then just hit "close tab" because when I'm on someone else's instance I want to be a good houseguest and not cause trouble.

Such people have been surrounded by an echo chamber for years and years, they never hear any viewpoints other than what the establishment feeds them, and I don't really want to waste my time fighting against the propaganda power of multiple nation-state coalitions.

(I did make the mistake of accidentally saying what I thought a while back, and now I've got a bunch of smug idiots on my case)

I figure it's only a matter of time until the rest of the fediverse starts to arrive (I've heard through the grapevine some other instances considering starting up their own lemmy instances), and then things will be a lot more balanced.

I think there's a wide range of people on Lemmy too but the extreme right and extreme left have ended up on instances that have been defederated from the main group. So what you're seeing are the sensible, rational people, and in America such people are considered left wing I guess 😉