There are so many things to be concerned about in the world
That’s exactly it. Present day conservatives don’t have any solutions to current problems, so they have to make up a boogieman that has to take the blame for all that is wrong in the world (instead of the actual causes) and that only they can save their followers from (because everyone else is already “indoctrinated”.) Anything that’s against “traditions” is a good target (often a minority that’s starting to get treated in a more equal way.)
Because they don’t understand that voting is just one part of the democratic process.