
They keep the population of other organisms in check. They also can still serve as food sources for other organisms. Not to mention that some of them can be used for controlling invasive species. Also, consider how parasitic humans are to every other living thing. Why should we continue to thrive to the detriment of other organisms? Plus, parasites are more common than you’d think. As in, a good portion of living things, if not a majority of them.
Don’t get my wrong study parasitology and have your mind blown, fun fact malaria has 7 cell walls. Multiple hosts, complex life cycles its all cool but like read it in a text book, put it in a museum make a documentary cool. Not get people into a conference room and discuss how to make them proliferate