T i m wrote

And probably also thinks that eating
meat should be banned from 2025.

Whilst I doubt it will happen from 2025

I know it wont.

(it will continue going that way of course)

Bet it doesn't. Its just another fad.

but do you think we will be able to continue to feed
an ever growing population AND as many livestock
as people on the current viable land indefinitely?

Yep given that world population will peak and start dropping.

Or do you think we should just carry on flattening places like
the Amazon [1] and other ecosystems until we fell the last tree

Taint even possible that that would happen.

and then look to see what other planet we can **** up?

We wont **** up this one.