I think for me (and again, no, I really have never seen or even heard of the issue), I can see where it may be a concern, but it is so far down my list of worries about how people raise dogs that it quite simply takes a back seat. I worry about people who are alpha rolling their puppies. I worry about people who make their puppies suffer the rude onslaught of every dog at the dog park because they were told to "socialize" it. I worry about people who think rewarding their young dog's nervousness around strangers is "teaching him to be protective". I worry about people who don't take their puppies out at all until they are older because they worry about vaccinations, and I worry about people who don't vaccinate at all because they heard the hype and went overboard without researching. I worry about people who get the wrong dog because it is cool or it is popular or it is pretty, and you just know both the people and dogs are going to suffer. I worry, like Fran mentioned, about the people who get a dog and it lives outside with minimal contact. I worry about people who get dogs for sports and then rotate through them every year because they aren't up to snuff. I worry about people who hear "neutering is bad" and won't do it, but are completely unprepared for owning an intact dog.
It isn't that I think anyone should keep a puppy in a crate all the time with no contact for the sake of ease. If that person shows up in my life, I'd absolutely work to change how they lived with their dog. I just can't get myself very wound up about it when I personally don't see it happening. Especially when I do definitely see the opposite problem happening, with people not properly confining their dogs for their own safety.
It isn't that I think anyone should keep a puppy in a crate all the time with no contact for the sake of ease. If that person shows up in my life, I'd absolutely work to change how they lived with their dog. I just can't get myself very wound up about it when I personally don't see it happening. Especially when I do definitely see the opposite problem happening, with people not properly confining their dogs for their own safety.
The only people I see guilty of this behavior are, frankly, "dog people" who've convinced themselves that it's ok, for their convenience, to keep dogs kenneled all the time so they can own more for sports, breeding, etc without having to live with them all or deal with them.
I don't see well-meaning people doing this. I just... don't. I'm not saying it doesn't happen, I'm just saying that I literally never see it. When people keep dogs in crates extensively for convenience, frankly I find that they're either people who don't care about their dogs to begin with (like commercially oriented BYBs), or "dog people" who've become... warped, and are convinced they should have all these dogs they can't actually live with (or just can't be bothered with), and start piling dogs into kennels for the majority of the day.
I really, truly do NOT see well-meaning members of the dog owning public being sucked into excessive crating. A educational campaign would be meaningless because as I said, IME, the people guilty of warehousing dogs in crates for convenience know exactly what they're doing and just don't care.