They are like the most morally neutral being, like plants, on this earth.
We cant live without them, despite the small percentage of microbes that are harmful.
Without them we can't digest food, rendering us unable to even live.
What rights do Human have when considering a "cleansing" of an entire strain of bacteria.
Forget the specific impact of certain animals in certain geographical locations to certain ecosystems.
Microbes help all, and harm all! They are truely the only benevolent creatures.
(that may be a little too far.., but its ok)