Because when you talk about protection or safety for children or animals or [insert vulnerable group here] you can short-circuit a lot of people's reason/skepticism.

Because evil runs these people. Its actually that simple. When these guys speak, its easy to hear they are evil, because of how they speak.

And they know other people are good, so they wont immediately agree with a dystopian society. So you take small steps, where each one looks good on the surface to the billions of people who only hear about this for 5 seconds on the news.