Is there really any hope for humanity?

[Born To Stone]

Religion is an early ploy to govern people's actions by using fear (definition of terrorism?). But in our new age, it's much more profitable to split ideologies in order to create wars. Why? For money, of course!

Although religion has been (ab)used by the people in power as a means to achieve mass support for wars, you mentioned just before this your worry about people forgetting how to explore their mind. Maybe the decline of religion is itself a cause of this. You mention meditation as a way to access closed "doors", meditation has been used in nearly all forms of religion. Also it is true that many religions have used entheogens (drugs used to achieve a spiritual experience) e.g. mescaline, ayuahasca (DMT).

Do people even naturally belong on earth? Our intelligence and thirst for more can only destroy everything else.

I would say yes because we naturally evolved on this planet, maybe the synthetic things we invented on this planet do not belong. However inventions could be viewed in a similar way to biological evolution. For example coal power stations were inefficient and damaging which lead to initiatives to replace them with solar power, wind turbines, hydro electric dams etc. If you mean "do we belong in terms of morality?" this could be paradoxical as humans invented the construct of morality so these rules could not be applied to us if we were never there to create them.