Why do almost all women today hate home audio?

Yeah, and Cartier branded amps would be in high demand by them, no doubt.
Audiogon keeps removing posts and entire threads for unknown to us reasons. I guess, we don't pay enough for the freedom of speech.

If a woman tells you that you need to 'get with the times' and haul away your stereo then perhaps she is testing if you have a backbone?

If it is simply a matter of disinterest then I would point the finger at the lack of a real social factor in the hobby, something which women on average value more than men. I don't see the same imbalance in TV or YouTube watching which are the equivalent pastimes of today. Perhaps if people invited over company and made music an after dinner activity as used to be done your wives would be more inclined to take interest in if your system is up to snuff? I wouldn't believe any claims that women have lost interest in music as based on the advertising I see they must be buying far more music than the average man.

This assessment ignores a lot of very basic facts. For many Americans, they need a car to get to work, and they need a car to do even the most basic shopping. For them, a car is a practical necessity.

You should test your theory out on your wife. Ask her what she thinks is the least desirable car that she could own. Then suggest that it might be good idea to buy one. See whether the practical aspects of a car are more important to her than the aesthetic aspects