What is the problem, for a child to be conceived it requires a male for the sperm and a female for the egg; in other words, heterosexual sexual activity or at least a turkey baster. All this law does is confuse the child and moves society further left where as Hillary Clinton said, "It takes a village to raise a child".
Now being in California this will be an issue - what happens if a child is conceived in an orgy where the mother slept with more than a dozen men that night. Are they all parents of the child? What if they lived in a commun where there was free sex and a hundred men lived in the commun, are they all named fathers?
When it comes to child support I can guarantee that the courts wlll rule that there is one Dad and he pays.