Yeah, so? It's too bad that we haven't eradicated more disease-transmitting vermin, parasites, deadly bacteria, etc. Like rats carrying black death and malaria-spreading mosquitoes, ya know? Anyone who sides with and prefers other species over our own, or who worships a hunk of rock like "earth" to the point of wanting to exterminate the human species to "serve" it is a traitor.
Thousands of species have come and gone without man having a thing to do with it. It's survival of the fittest, Baby!
If we had to extract every last resource from the planet to survive and then move to Mars, well, then, that's what we'd have to do. Tough luck, earth. Though luck, other species.
We are frequently finding new cures for disease from plant and animal sources. What possible cures have we thrown away because we wiped out a species? One of the first treatments for Malaria (quinine) comes from a plant and so does aspirin (salicylic acid).
"Quinine is a medication used to treat malaria and babesiosis. This includes the treatment of malaria due to Plasmodium falciparumthat is resistant to chloroquine when artesunate is not available. While used for restless legs syndrome, it is not recommended for this purpose due to the risk of side effects. It can be taken by mouth or used intravenously. Malaria resistance to quinine occurs in certain areas of the world. Quinine is also the ingredient in tonic water that gives it its bitter taste."
Quinine was first isolated in 1820 from the bark of a cinchona tree. Bark extracts have been used to treat malaria since at least 1632. It is on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system. The wholesale price in the developing world is about US$1.70 to $3.40 per course of treatment. In the United States a course of treatment is more than $200.
A precursor to aspirin found in leaves from the willow tree has been used for its health effects for at least 2,400 years. In 1853, chemist Charles Frédéric Gerhardt treated the medicine sodium salicylate with acetyl chloride to produce acetylsalicylic acid for the first time. For the next fifty years, other chemists established the chemical structure and came up with more efficient production methods.:69–75 In 1897, scientists at the Bayer company began studying acetylsalicylic acid as a less-irritating replacement medication for common salicylate medicines.:69–75 By 1899, Bayer had named it "Aspirin" and sold it around the world. Aspirin's popularity grew over the first half of the twentieth century leading to competition between many brands and formulations. The word Aspirin was Bayer's brand name; however, their rights to the trademark were lost or sold in many countries.
Aspirin is one of the most widely used medications globally, with an estimated 40,000 tonnes (44,000 tons) (50 to 120 billion pills) consumed each year. It is on the World Health Organization's (WHO's) List of Essential Medicines, which lists the safest and most effective medicines needed in a health system. As of 2014, the wholesale cost in the developing world is $0.002 to $0.025 USD per dose. As of 2015, the cost for a typical month of medication in the United States is less than US$25.00. It is available as a generic medication. In 2016, it was the 38th most prescribed medication in the United States, with more than 19 million prescriptions.