Is an ikea knife infinitely replicable, distributable and capable of undermining the entire social fabric of a community? No. so these are not the same category of threat potential.

Further, an ikea knife used in a crime can be traced back to the criminal through other evidence like finger prints, surveillance cameras, purchase receipts etc.

Arguments that have a emotional component, especially related to our evolutionary instinct to take care of kids has a way of avoiding the rationalizations people adopt to justify otherwise indefensible behavior.

You also dont do yourself any favors in a bad argument that lumps me in with some unknown group of people rather tan responding to my argument.