Pedophilia, or pedophile. Usually used to bypass filters.
Confidently Incorrect Person: "In the past 100 years gay and lesbianism was a weird concept but now it's a normality and if care is not taken in the next 100 years the Big Bad P word and doing bad stuff to a child will be considered a normality too and that's just fact.
You: "That's literally the slippery slope fallacy you schmuck"