Those "panty waisted armchair experts" spend a heck of a lot more time in the field observing, taking data, and otherwise being objective than a bunch of drunken rednecks stumbling about at dawn or tumbling out of their treehouses.
Now how's that for some nasty stereo-typing? It's called "wildlife management" for a reason and the people doing it have spent years studying it and not just in libraries, though that is certainly a part. It is not based on anecdote. And like any science, it's constantly evolving, based on new information and changing conditions. And like in any field, there is often disagreement between the experts. You don't throw the baby out with the bathwater. Just because doctors and researchers can't cure all cancer, doesn't mean you say screw it and reach for the leeches.
And believe me, these scientists are not the ones with the "warm fuzzies." They aren't looking out for single species; they are looking at the big picture and what is beneficial for the entire system to be healthy. If they did not, the country would be overrun by cute little duckies but all the icky creepy crawlies would be eliminated. Then what would the cute little duckies eat?
Granted I don't have much land nor a big operation. But I have a llama with my sheep and my birds have fences, pens, coops, and dogs nearby. I know it's difficult to be 100% safe, but knock on wood, I haven't had a predator issue yet. Living in a place that's popular with x kind of predator, and just about any place in the world will have some sort, and trying to eliminate the predator without taking other measures to protect your own is akin to the folks who move to the country and complain about the smell of cow manure and expect the local dairy to be shut down. Or leaving your money on the steps next to the crack house and complaining that it was taken and shooting the next crackhead that comes along. Like roosters crowing, crackheads and coyotes do what they do and you're not going to change their nature or eliminate them. You can take measures though to keep your property from being such an obvious target and yes you may even be able to change some individuals' behavior.