Collectivism is just Altruism?

You selflessly carry the pain of everyone else's concerns, to your own detriment, and are expendable so long as to yield net improvement those who are not you.

"Why expend myself? I am useful to improve the world"

Then Collectivism is "improving the world"?

Anyone can describe themselves as doing that without being a part of an ist or ism or whatever group culture.

Why even mention collectivism? Why not devote some amount of one's time and resources to improving the world?

One responds: "that's the same thing! Everytime you try to improve the world it's Collectivism"-

Everytime you successfully improve the world? or simply believe to have improved the world?

The contention over what improves the world is precisely that - to posit that this is the standard which makes it Collectivism is preposterous, but becomes easier to understand when you find the real difference: A theory about final conditions which can only be made possible because the subject and object are co-continuous.

That is, everyone will want to do X because they live in Y.

Because it's impossible to delimit clear lines of intent in any thought or action, the standard for advocating collectivism becomes allegiance to theory, and adoption of praxis.

We believe we are the collective, because we both declare the right ism and intent to perform praxis.

But the moment a contradiction presents, one of us is no longer within the collective and will have to be transformed, or discarded. Perhaps even millions of us.