Everything you think about stay-at-home dads is wrong.
Choosing to invest in others when everyone and everything is telling you to continue investing in yourself and your career shows strength of character and a willingness to live your principles. Why can't we learn to evaluate the success of a life, or even of a career, as a blend of money and meaning, of both climbing a ladder of accomplishment and building a web of relationships? We can, of course.
Language both reflects and creates culture. It is a self-perpetuating system. If you can change the language you can alter the culture. The results are not always perfect. Stereotypes are hard to break down, but those who complain about political correctness are usually on the wrong side of the cultural shift.