That is a completely invalid analogy. People are citizens of a country by accident of birth. Religious people, especially in a free country like the USA, choose to be such.
To correct your example, it would be like eradicating communism by killing all the self-confessed communists you can find. Which actually sounds pretty effective, if brutal.
A nice try, headingin the right direction but ending up in the ditch. Your analogy speaks of killing all the self-confessed communists you can find.
The attacks on Christian facebook accounts were a drop in the bucket, they were a few of the self-confessed Christians who happened to use the same name and password on Facebook that they did on a dating site, hardly all anyone could find.
The whole thing reminds me of skinhead teen-agers getting drunk and anonymously vandalizing homes with spray-paint at night. Hardly a blow to eradicate anything and much more like vandals desperately trying to dress up their lust for destruction in noble robes.
To correct your example, it would be like eradicating communism by killing all the self-confessed communists you can find. Which actually sounds pretty effective, if brutal.