I don't know what circles you grew up in but in my entire life I've met only a handful of teenagers who not only know what the fuck is actually going on but care enough to do something about it. I interact regularly with college students at a fairly respected and prestigious University and most of them have no fucking idea what is going on in the world or what needs to happen to make changes, how complicated things actually are, etc.

One main reason why under 18 shouldn't vote is the concern that the adults around them will bully them into voting against their own beliefs and interests regardless of which side anyone may be on.

I skimmed your history here and you sound like a kid who is feeling too big for their britches.