It takes a nation to protect the nation
Why would they do this? Because islamic scripture records that Mohammed, the founder of islamism, beheaded children.
Narrated Atiyyah al-Qurazi: I was among the captives of Banu Qurayza. They (the Companions) examined us, and those who had begun to grow hair (pubes) were killed, and those who had not were not killed. I was among those who had not grown hair.Sunan Abu Dawood, 38:4390
When the most famous supposed "muslim reformers" in the UK were repeatedly asked to denounce these hadiths, they would not. They would denounce the Mohammed portrayed in these hadiths.