Being a deadbeat is defined as not paying. It's not about caregiving. These roles may not be equally distributed by gender, but then why is there not as much complaining by men about women not being equal partners financially? It's has to do with bias.

You can also find that much of the research about household duties is biased against the type of work that men have traditionally done (eg excluding yard work, maintenance, etc).

> Being a deadbeat is defined as not paying. It's not about caregiving

Merriam-Webster disagrees [0][1][2].

[0] https://www.merriam-webster.com/dictionary/deadbeat

[1] https://www.merriam-webster.com/dictionary/loafer

[2] https://www.merriam-webster.com/dictionary/idler

Re. your other points, I don't entirely disagree with them, but they are at best tangential to the article we are discussing.