I don't believe you won this. I'm not siding with the person you're discussing this topic with, but they made better moral arguments.

Your supposition that consent can morally come from two seperate human beings, despite the potential condemnation of the new human, is inherently flawed. The same logic could be used to excuse a huge variety of cruelties. Giving someone something (even life itself), does not inherently grant the donors agency over that life.

For example, if a terrible disease that brings pain and very early death is genetically passed on by one person that decides knowingly to have a child, and the child is born with that disease, one could easily make the argument that it was immoral for that individual to have a child, instead of adopting.