Meta threads will open federation to the fediverse soon, and while this is mainly to mastodon it will still affect lemmy. They are acting like they won't be evil, but let's be real this is Facebook when have they ever done that.
You're missing the point, people don't want to defederate from threads just because it would be the biggest, but also because it's Facebook.
How are people giving Facebook of all places the benefit of the doubt? This is insane. If they don't have an alteriror motive now, they will most definitely later.
It's pretty unbelievable isnt it? You would think this wouldn't even be up for debate on a platform like Lemmy but some people seem desperate for growth at any cost.