Of course photography is appropriative. The fallacy is in assuming that since the photographer "takes" something, the subject loses something. The subject, usually, does not lose anything. But the photographer gains something, a photograph, which partakes of the essence of the subject in some interesting ways.
In terms of landscapes, we're taking as much as any other case.
In some cases, the subject *does* lose out. You can't remember the Eiffel Tower or Half Dome any more, what you're remembering is a photograph, almost certainly. Sally Mann makes this terrible observation in her memoir, that photographs destroy memory. It's a bit of a step from destroying memory to damaging the thing itself, but depending on your philosophy, even that's a reasonable step.
Something is certainly harmed, something closely tied to the the thing itself.
This is not, thankfully, the common case. Generally photographs do no particular harm.