You are again pushing the "beheading" and "murder" argument, which is not what people disagree on. People agree already that these things are wrong (wow!). But you just hinted at what the problem actually is when you said "That may not be murder, but it is certainly something akin". So, again, the question is: what is it? When is it murder? Can I kill sperm? Can I let a woman have her period? Can I kill an egg that has just come into contact with a sperm? What about 1 second later? 1 minute after?

Keep in mind, I'm not even taking a position here. I'm just letting you know what the fuss is about.