Nothing is sacred and everything can be traded

I was at a vegan meeting and a speaker mentioned that changing to a pure vegetarian diet is a major decision in life, like changing a political party.

The aversion to new kinds of foods is unreasonable, and putting so much meaning to diet is too. I would eat meat and torture and kill whatever creature that I get the meat from if it would reduce $CO_2$ in the atmosphere by 1ppm. Meat is not sacred, nothing is. A creature killed accidentally is okay to eat, unless it would be better used not eaten.

For example, humans are not eaten since they are more valuable buried. Dead buried humans, covered in coffin planks, and decorated with protruding marble gravestones, engraved with magical incantations (epitaphs), are valuable magical artifices for keeping the human cultural system functioning.

If people lose their desire for having a stable "identity" and have only a desire to solve problems, then the endless political arguments are going to reduce to the essences of problems: numbers. Who kills whom with what probability? Who creates what with what rate? How to measure happiness? What's the probability that humans would go extinct in the next century?

If people lose stable identity, traditional stories are lost, since the characters keep shifting their identities. People still exist, but not as souls or stable identities, but as semi-stable bundles of traits on meat-and-bone bodies moving in a strange universe (that also has no stories).

Nothing is sacred and everything can be traded. This spineless and shapeless way to problem-solving destroys all that's sacred and meaningful, and survives like cancerous weed.

Of course there still needs to have a problem to be solved. In my case, it's the problem of suffering: how to reduce suffering in total? But why is reduction of suffering sacred?

It's not. I do it not for higher purposes, and only as a numbers game that I am currently devoting my life to. I cannot predict what this meat body would be up to 10 years later, if it still exists.

Nothing is sacred and everything changes, except the physical and mathematical rules. Morality, religion, and higher purposes in general are absurd by their very nature of pretending to be more than a game-value-system, and somewhere out there in the universe there are things that don't play this game. The only escapes from absurdity are to just play the game without pretence, like those who loses self-consciousness and lives in a dreamwalk state of flow; or to not understand it's a game, like most people.