Yes, this is stupid. But many voters will be attracted by simplistic statements.

And as a factory worker you are likely much more scared of having to leave your job and learn something completely new… compared to, e.g. the random HN reading IT freelancer.

So the stupid sentence, I'm sure, will resonate well with many citizens (unfortunately).

Of course, there better approach would be to show the potential benefits and job opportunities. But why put in the effort of simple fear-mongering will do?