Or supporters of Creationism, but oppose to the Endangered Species protection.
Let's start with this from the OP. Species extinction hasn't been demonstrated. In the 1970s, Norman Meyers predicted a million species would be extinct by the year 2000. Paul Ehrlich predicted that fifty percent of all species would be extinct by the year 2000. But those were just opinions. --Discussion in Lomborg p. 252
Opinion in the absence of evidence is prejudice. Do you know how many species are on the planet? No? Neither does anybody else. Estimates range from 3 million to 100 million. Quite a range.
Morjorie L. Reaka-Kudia, et al., Biodiversity II, Understanding and Protecting our Biological Resources, Washington: National Academies Press, 1997. "Biologists have come to recognize just how little we know about the organisms with which we share the planet Earth. In particular, attempts to determine how many species there are in total have been surprisingly fruitless." Myers: "We have no way of knowing the actual extinction rate in the tropical forests, let alone an approximate guess." In Lomborg, p. 254
So its pretty hard to determine how many species become extinct if you don't know how many there are in the first place. How could you tell if you were robbed if you didn't know how much money you had in your pocket to begin with? There is no known rate of species extinction.
After your response we'll start doing Global Warming (which claims species exctinction).
Edited by Tal, : No reason given.
We never seem to acknowledge that we have been wrong in the past, and so might be wrong in the future. Instead, each generation writes off earlier errors as the result of bad thinking by less able minds-and then confidently embarks on fresh errors of its own. --Michael Crichton