The funny thing is, the real quality American bikes were the Indians. Indians always lead the way in technology. Burt Munro rode an Indian. Also, when was the last time a Harley (not a Buell, a real Harley) won a race? Not talking flat track, I mean like World Superbike, MotoGP, Motocross, Supercross, Hare Scrambles, Enduros, etc. On any given Sunday in New England, you'll see KTMs and Huskys winning NETRA races. Go to a Motocross or Supercross and it's KTMs, Huskys and the four Jap companies. Watch MotoGP or World Superbike.
Harleys were chosen to be our military bike in WW2 because they were cheaper. Yet these days, the things cost $18,000 for a nice model.
Harley has been taking foreign parts and making "American" bikes for way too long. Look at their attempt to get into Motocross, the 1978 Harley MX250. It had an Aermacchi 2-stroke engine and a frame from Champion. They made a whopping total of 65 bikes.
http://motocrossactionmag.com/news/classic-motocross-iron-1975-harley-davidson-mx-250
The other problem with Harley is that they're so full of "history" that they can't or won't move into the 21st Century. Does Harley make anything besides gigantic, overweight cruisers? Nope. Not one supermoto, not one dirtbike, not one sportbike (no more Buell) and not one ADV bike. And because Indian/Victory position themselves as "better at being a cruiser than Harley", those two companies also don't get into other bikes.
I see more Harley bumper stickers and truck tow hitch covers and clothing than I do actual Harleys. Like Thomas Paine said, "sunshine patriots."