I hear where you are coming from - but I don’t think this huge departure from rational action on the sake of this “man” was due to that. As others have posted, his irrationality probably was manifest in other ways which prompted the wife for a divorce.
I have seen my sister fleece her ex for tons of money. It is a disgrace to him, and I take it as a disgrace to my parents. I know other guys that will never dig themselves out of the debt of child support and alimony.
I probably am a fool for believing what I swore to in marriage. But after almost 20 years we have still stuck together “through better or worse”. Of course if she did leave me, and after seeing the bank account drain and my hope dwindle I wouldn’t put it out of the realm of possibility that I might have an accident and miss a turn on one of the many mountain roads I find myself on.
I condemn this man for killing his child, it was an insane thing to do, but I haven’t walked a mile in his shoes.
I have seen what women can do.
Guys in this position know their life is over, and they act accordingly. There is no defense for this act, but hopefully it will focus on the plight of someone who in the space of minutes realizes 1) they’re homeless, 2) they will be working to support the ex-wife (and the children as that ex-wife sees fit), and 3) their children will probably be raised more by some strange man than by them.
If something isn’t done to change those outcomes, then you may expect to see this final outcome with increasing frequency as we remove faith from the public square.