The parades are usually about special Church events, rememberance should be done by everyone, not to glorify, but to remember... a pacifist can remember, and the flag 'stuff' is about being proud of a nation, acknowledging a common ground, our home, and can be done by everyone without sinister motives.
There may be similarities to ANY group but the groups are all different. The scouting movement is certainly not the same as the Nazi Hitler Youth, even though there are parades involved... the Midsummer Watch Parade is a pagan tradition, but they're not conducting child sacrifice (not this year anyway)....
I'd like to learn more about the Woodcraft Folk, it sounds fab. But my experience of scouts is NOT one of regiment, marching, war glory, monarchy loving, indoctrination. If its not for you its not for you, but just because its not for you doesn't mean it IS all the things you think it is.... I guess that's where any angst comes from.