Not all, I don't think.
Just the vast majority.
This, I agree, but I believe it has always been this way.
In the '80s the vast majority of mainstream cars looked humdrum and blocky and ungainly and awkward.
In the '90s the vast majority of mainstream cars looked humdrum and blobby and ungainly and awkward.
In the '00s the vast majority of mainstream cars looked humdrum and fussy and ungainly and awkward.
BMWs were always handsome if unadventurous, then Bangle got it back to front, but the current Z4 looks great to me.
Fords were hit and miss, but the current Mondeo is very handsome, and the current Fiesta looks very nice too, particularly in 3 door form.
Opel / Vauxhall usually get it right IMO, I don't like the current Corsa but the Astra is fine and the Insignia is quite smart.
Alfa 156 and 159 were spectacular.
So was the 166, and the Giulietta is like a more shapely Astra... if you don't look them in the eyes....
I think all current Range Rovers, incl. the Evoque, are good looking vehicles too.