Objective morality as a proper basic belief

[Astonished]

Not really you are confusing what is objective and what is subjective.
I think it is morally wrong to condemn homosexuality, that is subjective opinion. If morals were objective everyone would think it immoral to condemn homosexuals, but they don't do they!

This bit isn't true at all.  Moral disagreement exists.  Moral disagreement would still exist if morality were objective.

No they wouldn't.

 Those moral disagreements would be better informed disagreements than any "just-so" disagreements.  

What you are referring to, is what would be the case if morality was completely uniform.

If morality was objective it would be completely uniform.
It isn't hence subjective.

Well, hold on, you can still have moral disagreements even if you both agree on where the goal posts are, since you can say that homophobia is objectively bad for well-being but perhaps not see eye-to-eye on...just how much? Or something. As long as the goal posts stay put then there's an overwhelming amount of subjective argument that can and does take place but you can both agree that the results of any action in any instance are objectively verifiable.