Well, we have already established that you have no objection to gay males adopting children. You said that in an earlier post. Yet there seems to be some conflict between that statement and your latest post.
Let's clarify your position:
You have no moral objection to gay males adopting children.
You have no moral objection to heterosexual couples conceiving using insemination techniques.
You do have a moral objection to homosexuals employing a willing female to act as a surrogate and employing insemination techniques to conceive a child.
A further question: let us imagine a heterosexual couple, in which the female is unable to bear and carry a child, would you have any moral objection to said couple employing a willing female to act as a surrogate and employing insemination techniques to conceive a child, which would be carried by the surrogate but raised by the couple?