Now, you start to involve religion into this. Different religions surely have different views on these questions. I guess we are talking about Christianity first.
Life is given by God and should not be tempered with human intervention. The Bible may not say so explicitly. But this is a result deduced from Christian theology. An example of negative measure based on this result is the ban of contraception in Catholics. Positively, Christianity should oppose all the processes you have listed above.
You are not going to easily find a logic explanation to the oppositions. I can provide one, but it is long and it involves a few more fundamental issues in Christianity, such as the origin of soul, etc.
A straightforward answer to your question would be: "human" "produced" through human manipulation may not be recognized by God as a human. If God does not recognize them, His followers would not recognize them accordingly.