Funny thing; The Soka Gakkai branch of Nichren Buddhism teach that desire is necessary and that to strive to eliminate it is futile. They instead try to use their desire as motivation to achieve their goals in life; in order to be happy thus ending suffering...(?)
This really turned me off to Buddhism because I personally feel their philosophy is destructive. The 'take care of yourself first so you can take care of others' thing seems dangerous and feels more like an excuse to be selfish or greedy. The problem with desire is that like greed, it never ceases. At what point does one switch from 'I must acquire and achieve at all costs' to 'ok i've acquired enough or am satisfied with my life condition, time to help others'? There also is little emphasis on building character so an evil person who hears this 'do for yourself... achieve... this method will guarantee you success' will take that and do evil things with it.
As for the 'dont take my word for it try it yourself' thing, that is standard even in Christianity. I heard that the very first time I spoke to at least 5 different instructors. The only good thing about Buddhism that I've gotten is the understanding of PERSPECTIVE. It's everything. The way you see the world determines how happy you are. They just brain wash you into believing their methods (which are actually amount to nothing more than insane persistence) is doing something special and when you fail they teach you to make up an esoteric lesson learned excuse for your failure, and then tell you to move on.
I know nothing of Nichren Buddhism. Can you say more about the desire thing?
As I learned it, desire in and of itself isn't detrimental to those goals of ending suffering. And it is impossible to eliminate. If we lacked all desire we wouldn't even be motivated to do even good things, right? I tried to be careful with my language here, in saying "craving, or unhealthy attachment."
Craving to me is a step beyond desire. It feels like a need, when it really isn't. Holding onto an idea, person, or thing for dear life. Wanting so badly it consumes you. Maybe that line between desire and craving is a little blurred, and I bet it varies from person to person. But I would never (mindfully) say that all desire is unwise.
About the rest, hmm. I learned that focusing on your own individual salvation is an act of kindness to everyone around you, and actually a very important step toward saving the world. If you're calm and of sober mind, doesn't that automatically make you a better friend, and son or daughter? To me it seems like it could go a long way in teaching others about the benefits of such things as equanimity and loving kindness. It's not like improving yourself and helping other people are two mutually exclusive things. Quite the opposite, actually...
Working to become a better person isn't greedy or selfish.
Back to desire... desire doesn't exist. It's not a solid thing we can touch, it's just an idea we invented which exists because we will it to. It's neither good nor bad, and any such extrapolation is just an exercise in delusion. Any philosophy can be destructive if you stare at it long enough. In Buddhism we're supposed to be developing sharp and discerning minds, that allow us to truly understand the human invention of desire and know when and where it is helpful, and when and where it is not.
I have no idea what you mean when you say that Buddhism says nothing about character building. The entire thing is character building.