I agree with most of what you say, that most peoples lives are basically insane, self-destructive and detached from what I would think of as reality - including nature.

But I'm really not sure "all this must have an impact on our “little” planet" is right.

Obviously if you build a car park on a field, that is a direct, local effect of itself. But I think it's easy to go without justification to believing the whole planet is in some way damaged, and that the effect of humans is some how more than the sum of its parts.

Because that's how they get you, and what i think triggers me about your argument. This vague globalization of your actions and the damage you are causing - which can never be really atoned for because it's not really defined.

Worth noting that this kind of sentiment, that humans are wrecking things and it can't last, has been prevalent throughout history - eg, most obviously with Malthus in 17th century. He and his followers were wrong then, and everyone since has been wrong - I think for the reason that we have some inbuilt psychological tendency to guilt, and belief that our actions must have some larger negative consequences which we extrapolate to a permanently looming global catastrophe.

But the good news is - we really don't need to worry about it! Even if we suppose the doommongering is correct (it's really not), then we are simply doomed - there's nothing we can do about it, no conceivable possibility that we could organize in a rational way to prevent it. So the worry is for nothing..

..except that I think the worry is actually the primary thing, and the doommongering is the effect of it, not the cause. Humans have this predisposition to worry in this way, and it's a big part of how they self-organize into controlled groups. The physical reality is unimportant and the issues chosen to worry about are entirely arbitrary, they're just a means to the end of social control.

So I invite you to consider this, and if you agree - you can be free! You really don't have to worry about this stuff!