Somebody who is dogmatically following an ideology; think of an ideologue as somebody who is running an abstract program in place of their normal ability to think about information using the principles they have naturally acquired through their life experiences.

Having ideas that map 1:1 to those of an ideology does not intrinsically make you an ideologue. Forming those ideas, based on conformity to an ideology that you have subscribed to, does.

This matches 'red scare' quite nicely and might give you some food for further thought.

The definition of ideologue matches the red scare? Are you sure you meant to reply to that comment?

I meant to reply to that comment, yes.