I was thinking about finding a way to at least get the father exposed to the link, even if through a third party. Sometimes there are creative ways to do that, sometimes not. Often getting someone actually "thinking" can be a big help. It's too bad his father uses these "suck it up, man up" reactions, they are not helpful, but instead dismissive and hurtful.

The parents I mentioned that I spoke to? Their son is in his early 20's now, they were grateful for the help/insight as the relationship has been very challenged. Sadly, the challenge she is having with her husband struggling to express his challenges has been caused by his own parents lacking in listening and actually communicating with him. That can be encouraged into more positive interactions. It depends on how approachable these people are.