No. As I explained before it's about inputs and outputs across policy sectors. You are framing the argument as long as there is some output. That is why I clearly don't approve biodiversity as an argument since it's not anthropocentric on its own standing.
In all policy debate there are at least 2 arguments. In this case, it's assessing the benefit to human life by:
1. Aiding species X
2. Aiding other initiative Z (whether it's a species or not.)
3. Expanding budget to accommodate new initiative.
Assessment is performed by measuring, as I stated, outputs minus inputs. Measuring those against other policies. If the costs to protecting a species outweighs the benefit to human life there is an inefficiency.
Bees for instance are vital to our agricultural sector along with bats, moths, butterflies, hummingbirds, ants, beetles and other prominent pollinators (an argument beyond biodiversity). They save us tons of money and provide greater outputs in food, and warrant more protection.
So, here is a run through of options one should assess in deciding whether to devote resources to saving a species.
1. Any initiative to save another species, if only for the sake of biodiversity, is taking away funding from protecting species that are actually essential to human life.
2. Any initiative to save another species, if only for the sake of biodiversity, is taking away funding from social welfare programs, healthcare, schooling, policing, ect.
3. Any initiative to save another species, if only for the sake of biodiversity, is increasing the total budget, no other programs are cut. Thus taxes are increased. Increased taxes, increased inflation, decreased purchasing power, and decreased economic growth, ect.
The biodiversity argument is fairly weak on its own standing since that means any and all animals should be saved if able to (which, again is impossible). Rather, there needs to be an argument to distinguish which species should and which ones should not be protected. From that, furtherance or preservation of human life seems to be the best argument in making that distinction least arbitrary.
sourceThe other myth is that people do not care. Work by Charles Darwin University PhD student Gill Ainsworth shows that is wrong. In a survey designed to avoid bias, 75% said they would become upset if a bird became extinct (compared to 7% who disagreed); 74% said that people have a moral obligation to protect threatened birds (compared with 5%); and 47% said that the needs of threatened species can come ahead of people compared with 15% who thought the opposite.
I highly doubt the amount of money required to make change to save species for the sake of biodiversity (if introduced through taxes) would cripple an economy. A 1% tax for conservation would go a long way and would be felt very little.
I still also think your argument goes against the common consensus of the population (at least of first world nations). Like with the shark example I provided earlier:
source
I particularly take interest in the bolded text. That is almost 50% who think it is more important than human needs and only 15% outright disagreed.
Just because it is impossible to save all species doesn't mean we should give up trying to save as many as we can (regardless of their impact on human life). That is the worst sort of argument.
At some point this just becomes a matter of coinciding opinions. I find that it would be more effective to save beneficial things, as well as leaving those that aren't beneficial. A lot of the time, saving something from extinction is a losing battle - often those species are less equipped to deal with their surroundings, which is why they're in danger. At some point, they will lose to their surroundings and be wiped out. People can keep them safe for a long time, but this doesn't change the fact that they will still lose out eventually. It's just a very uphill battle that can be harmful to us.
As for the majority of people argument, the majority is not always right. It used to be in majority favor that women didn't have the rights of a man, but that's not exactly the right way to go. There's also the problem of bias. You can ask a large group of people if they want to give up something to help others, and they'll most often say that they will. The fact is though, that when push comes to shove, no one really wants to give up anything. It's much easier to say what you feel is right than actually sacrificing it in doing so. People also have to keep up egos and whatnot.
I also want to take a moment to thank everyone who has posted in this thread. I was a little worried that I wouldn't get much input, or that it would be a one sided debate. Thank you to everyone who posted their honest opinion and tried to back it up. This is why I truly feel that pokecommunity is a great place to have a conversation, because you have great people giving great opinions. Thank you all!