I'm kind of in the same place; I first heard about Agenda 21 a decade ago from friends who watched Alex Jones, so I definitely discounted it.

Since then I have learned a WHOLE lot more about the plans & actions that have already played out on their way to that same goal, and watched the "sustainable development" agenda unfold, and there's no doubt in my mind what's happening.

That said, since that time I've also gotten a much fuller picture of human consciousness as it exists, the movement towards decentralization & peace, and I don't see how the NWO (for lack of a better term) could possibly be successful in their goals. Everything they do creates more resistance to what they are trying to do.