Why aren’t there more American motorcycle manufacturers?

The U.S. has Harley Davidson and Victory who basically make expensive cruisers and a bunch of custom chopper makers. Buell is the only attempt that the U.S. makes a sportbike which doesn’t come close to the amount of Japanese and European competition.
There isn’t even an American dirtbike company. There is really no beginner 250cc American motorcycle. The HD Sportster 883 is as close to a beginner bike as it gets.
So why can’t America be more competitive with making motorcycles of all kinds like they do with cars?
Is it that there is little business interest here in the U.S. or are they just not that smart to engineer their own bikes here other than heavy cruisers? Are they too afraid to copy Japanese models of motorcycles and sell them at a similar price? Even if they did, at least they would be American made and America would have more American motorcycles for buyers to choose from.
Yep, our American Unions which supposed to save American jobs prevent so many American companies from opening because of high demand in salary. They can pretty much shut their Union mouths when we buy Japanese and Chinese products…huh?

The U.S. is a huge country with a lot of open road. Big countries with wide open spaces call for big bikes. If we were the size of Japan we would make Jap size bikes. Somebody has to be top dog and we (like it or not) are it. We make big, fast, long lasting bikes. It fits our country. Kinda like why do Eskimos drive sled dogs. You wanna cover some ground get a Harley. Same reason we build big cars. Big trucks. Big buildings. Big jock straps. Big Space shuttles. Big H – bombs. We are big compared to them. Top Dog. The reason Japan even has an industrial base is because after WWII we gave them our expertise, free loans etc. and we built their factories for them so they would become what they are today. We wanted them to be what we have now made them. That was our right and it’s what we did. You gotta remember, they surrendered unconditionally. We could have put them all on a reservation in the Sahara desert and homesteaded Japan if we wanted to. We paid for that right with blood. You have the right to ride a Harley – paid with blood