We could argue for a while whether it's "few" or not depending on which scale or species you're looking at, but that wasn't really the point. I'm not really even concerned with the death of a given species or organism in and of itself, but other people are.
It's a selection process that results in countless creatures suffering and dying over and over. Sometimes even the selected creatures are suffering immensely and dying shortly after reproducing.
The environment changed too drastically and killed off most species. Humans changed the environment too drastically and it killed off some species. I fail to see what is it that humans are introducing that is so novel. If anything, it just seems like we're tapping into an existing process. Or, I would say, we always were part of the existing process.
Should we promote the process? I do not think so. But talking about opposing or stopping nature is the direct opposite of the usual rhetoric one hears, which is often in the form of: "Humans are terrible and are driving these poor creatures extinct and messing up the environment, we are not paying respects to Mother Nature!"
Meanwhile "Mother Nature" is OK with flooding the entire atmosphere with a completely different gas and making it unlivable for anything that used to be there before.