Demonizing is painting a large group of people in the same negative way.

If someone said Granite City residents are criminals, drugs dealers,sex trafficking and they carry disease that would be demonizing people that live in Granite. I guarantee that Granite has some people that fit one or more of those categories, but it's not even a majority.

In this case (measles), to my knowledge there's been no outbreak in an area with a large population of immigrants, or for that matter, in areas where they are being detained before deportation.

The bottom line is, if you and your kids are vaccinated you are 93 97% protected and if you would get measles it would be very minor.