"Who says that those sinful, fallen, flawed human beings get to determine who is a baby and who is not?"
The fact that humans define words
"God gets to define what a baby is, and what qualifies as human and worthwhile"
Okay, then you should be able to demonstrate that he actually did that (and Bible verses aren't proof), and you should also explain why anyone has to care. If he actually does exist, he sure doesn't enforce his own rules, so there's no reason to follow them.
"and that based solely on your antichrist ideology spin"
So because I follow science instead of your primitive savage religion, that means I'm an antichrist? Is that supposed to be a bad thing?
"This attempt to dehumanize someone else for the sake of your politics/immorality"
I'm sorry if you think it's immoral that a woman should have control over her own body and not be treated as a piece of property like your holy book says.
"is exactly the same method that the Nazis used to dehumanize the Jews, gays, the handicapped, etc"
It's not remotely similar to anything the Nazis did, because I have never supported nor will I ever support the mass extermination of people based on religion or anything else like that. Also, your primitive and barbaric holy book says that gay people should be executed, so your God is no better than the Nazis.
"And the end result is exactly the same- a conscience immune to the evil of murdering those who are innocent"
According to the Bible, no one is innocent. And since you yourself have defended the genocide of entire people groups, including children and babies, your moral compass is broken and inferior to mine, because I would never defend that.
That passage about God supposedly forming people in the womb means that he should get the blame whenever babies are born with severe disabilities, sometimes so severe that they die within a few days of birth. I thought God was pro life. Why would he make babies so horribly deformed that they die just a few days after they are born?