If they don’t make money on Fusions while the Camry-Accord-Altima do make money, Ford wisely may not want to compete.
It does look like mid- to large sedans will all be luxury status symbols with lower production volume and higher margins.
I had an Infiniti and now have an Acura. There is definitely a difference. I wanted an AWD MKZ but I couldn’t find one I liked. My wife had a Fusion and I thought it was a tad tawdry