> you enjoy everything just because it can happen
I cannot enjoy the suffering of my children or the torture and murder of the innocent because "they can happen" which I'd be required to do in this so called "enlightenment." What you're describing is pure selfishness and taking pleasure in evil. That's horrific.
> Your happiness does not depend on anything external so you enjoy things as they come, but don't attach yourself and your wellbeing to an ever changing external world.
Which is total detachment from other people too and their needs and for making the external world better since any attempt to do so would be admitting that things in the external world can really be bad. That's not a recipe for happiness, it's a recipe for total loneliness and, if seriously adopted by enough people, societal collapse. We're a social species, demonstrably. Buddhism as you describe it appears to be a rejection of the real evils in the world, passions, charity, and society.
> Enlightenment is an absolute bliss filled experience, not a state of numbness.
"Bliss" built on the enjoyment of evil is infinitely worse than mere numbness.