If your culture is anything like mine regarding illegitimate children, I doubt their attitude was any fault of your own. My own mother...suffered so much for my birth that the misery took her life. It had nothing to do with my actions, it's simply how parents of illegitimate children are treated in my society.

Holding yourself responsible for society's views will only push you down into those same depths. If your adopted parents care as you say, it must make them happy to have you as their son. You should focus on that rather than how you were treated for factors outside of your control.

And I'm not certain how much it's worth, but I'm perfectly fine seeing you in either form.