Should we trust politicians who insist government can't possibly create jobs to take over government and create jobs?

Would we dare hire a chauffeur to drive us around if s/he insisted it’s impossible to drive a car a single block without wrecking it? If not, then how does it make sense that Republican candidates who insist government can never create jobs all run campaign ads claiming they alone have a secret plan to create jobs? Are we as an electorate that stupid? Are we completely blind to contradictions? We will soon know.