I understand what you're saying. My disagreement isn't from lack of comprehension. We just have different views on labour.
You seem to think of the situation from a top-down, old-fashioned management view of employees who are lucky enough to be offered a job and should be grateful for anything they get. The modern employment era is much different, with young, talented people having more involvement and power in the process. And you keep ignoring all of that.
Yes, Josh can only take the jobs he's offered. But if a team interviews him and doesn't offer him the job, that doesn't mean he isn't wanted, like you keep repeating lack of an offer doesn't mean nobody wants him like you keep repeating ad nauseum. There are a lot of layers to negotiation beyond is a job offered or not.
People are not robots who act the same way all the time. Situations matter. Context matters. Look at Sean McDermott. I mean the Panthers D sucked this year (21st in yards, 26th in points), but he still got opportunities from his past body of work. He did well in the interviews, was the leader for the job, but he didn't take it right away. He had a lot of questions about how things would be done, how the chain of command would be. He had the job in hand, all he had to do was say yes. But he didn't take it, wouldn't take it unless he was comfortable with all the other criteria being met. Some like you would think that to be ridiculously risky and he may never get a HC job ever again because they're so rare (even though 6-8 of them will be available next year, and the year after, and the year after, and the year after...), plus he questioned an owner OMG! But these guys are realizing that it's better to pass on a terrible job than take a ****ty one for 2 years. And after Rex got the hook and after Marrone left as quickly as he could, he was right to do so.
Josh wants to be a head coach, but he's not desperate to be a head coach this year. That changes his approach. If his contract were expiring and BB wanted to go in a different direction, Josh would handle the process completely different. If he had never been a HC, I think he would also act differently. But he's got a job he likes, he knows what a bad situation feels like, he isn't going to leave it for a ****ty 2-year gig, and he's acting that way.
Anyways, I know this falls on deaf ears because of your old world view. But as much as you ignore it, it's a part of modern reality.