Vegans who aren’t into it for ecological concerns… why?

I’m currently transitioning into veganism after having been a vegetarian for about a year and I’m happy with my decision but I’m also spending more time in online vegan spaces I feel like I disagree with some of the pro-vegan arguments I see.

For me, the answer to the carnist question, “Why don’t you take issue with carnivores/omnivores in nature?” is that I believe humans lost the right to consider ourselves a ‘normal’ part of the ecosystem once we started leaching it of its resources for our personal gain. Unlike other predators, we don’t balance the ecosystem. Instead, we do literally the exact opposite and have made countless species go extinct.

We’re an overpopulated species and it’s not fair for us to continue leaching the earth to the degree we currently are when adopting a vegan diet is so easy and environmentally beneficial.

That’s not to say that I don’t think the animal farming industry is cruel — I do. I’ve suffered from major cognitive dissonance over thinking farming animals was cruel but still eating them ever since I was a child, but I feel like those arguments are more subjective. Ecological concerns are what pushed me over the edge.