Hahaha, gotta love it when they try to appeal to emotions and whatnot. Hey, I'm another person who doesn't give a shit about someone else having a photo of me on their hard drive. If it's there, it's most likely because I gave it to someone. At that point I lost control over who have access to my photo as that someone could share it with someone else and so on. If you don't trust that person, don't give it to them. If it gets to that person through government surveillance, for example, well, what the heck can I do anyways? I don't think that for a second that making it illegal to possess will somehow help me in that case. Do you think it actually helps you against genuinely malicious actors? Be more careful. In regard to pornography starring my non-existent underage child: yeah, how about, I don't know, pay more attention to your kid, improve your parenting? There are many resources to help you do that. What next, are you going to make the government threaten to kill others if they refuse to feed your kid through taxation because you bred despite the fact you are unable to feed your kid?
Unbelievable that you expect "illegal to possess" laws to be effective. They are not.
On top of that, people usually share all kinds of semi-nude (or even full) photos of their babies, etc. on Facebook. Maybe stop doing that?
I wonder how many of these parents have a teenager daughter posting semi-nudes on Instagram, or full nudes on Snapchat without their parents' knowledge. Go educate your offspring of the risks and potential consequences. Pay more attention to them. Let me reveal another secret: many perverts on the Internet are probably also masturbating to these photos. Who cares? Does it make you furious? Buy a punching bag, or go for a jog. Your idiocy makes me furious and makes you a criminal per https://www.legislation.gov.uk/ukpga/2003/21/section/127 if you are a British citizen, as you are causing me a great deal of annoyance. Unlike you, I think I should exercise my mental ability that allows me to ignore you and not give a shit instead of depriving you of money and potentially your "freedom". I wonder how you would feel then if I were just like you. You wouldn't like it now, would you?