Coyotes are generally not considered a serious threat to humans and eat very small mammals and an occasional injured deer. The coywolf will prey on larger mammals, often eat deer, and should be taken somewhat more seriously.
I'm sorry, but I can't accept that a wild, opportunistic canine that travels in a pack and is capable of taking down an animal twice its size presents no "serious" threat to humans. I suppose then that the highly domesticated pit bull also poses no "serious" threat, all evidence of attacks on its owners and others to the contrary.
Several characteristics differentiate coywolves and coyotes. The coyote is smaller than a standard german shepherd, while a coywolf is larger. A coywolf often travels in a larger pack. The sounds they make are different, more harmonious, more like wolves.
If it weren't for humans, hundreds and even thousands of years ago, the domestic dog wouldn't be much different than these animals. Letf to interbreed without input from humans, domestic dogs would soon resemble these animals, too. The pack mentality to a wolf, or coyote, or mix of both just means security and a sure meal. In numbers, they have little fear of humans, unless it is proved to them that humans can be very dangerous. The best way for us to prove that is to kill them every time they get within range.
Otherwise, they will continue to encroach further into "human" territory, just like deer will stay in an area they know is safe to them from hunters.
I had a confrontation with a "standard" coyote last summer while mowing at a neighbor's. He showed absolutely no fear of me, one-on-one, and approached to within 10 feet of me, even on a noisy garden tractor. He was trying to get past me and through a gate in a fenceline. I continually charged him with the machine until he gave up and returned the way he came. If only I had my pistol with me..... one less coyote.