Powered speakers show audiophiles are confused

So long as the cross-over is placed prior to amplification it is - by definition - active. 

This is incorrect, there are passive line level crossovers as well as active.

Well, I guess a good engineer could put drivers and an amp inside a concrete block that weighs about 300 pounds. Doubt it would sell very well. And Vibration dampening systems ARE important under turntables at the very least, regardless of what you are playing said turntable through. 

Why I will never buy another active speaker: My $2500 sub with massive D-class amp inside, died after a decade of service.  There is no practical way to repair a D-class amp.  Sorry, but if I were to spend any amount of money on a speaker, I would expect it to last more than a decade.  It should last decades.

Bryton sells non bundled active speaker systems:

https://bryston.com/active-loudspeakers/

Genelecs are super accurate and sound really good for studio music creation or cinema, but for audiophile home music listening they sound bit too clinical and chiseled for my taste. My guess is it's most likely due to the Class D amps that drive them.