To be fair, Hubbard didn't create this messy Scientology as we experience it now.
Scientology used to be fun when I was there. Going to the Org meant meeting friends and going out together after course. I don't think there is something inherently wrong with Scientology itself. Hubbard contradicted himself often enough which is a good thing. At least there is enough leeway for how Scientology can evolve over time.
Hubbard was a visionary and inspired people to give their best (or their worst if you look at Scientology now). Visions don't always turn out to be true. Some good things happened to people because of Hubbard and Scientology. Some bad things happened also because of it.
Take the good things with you, and take the bad ones as necessary tests to overcome on your way to the next level of play
maybe you was not on the Apollo while hubbard was doing his OT research,
and maybe you wasn't pushing a peanut around on the deck of the ship,
and maybe you never experienced other whistle blower stories of hubbard.