The Terminally Simple?

I have heard two examples which perhaps suggest insanity. The first is a Labour voter, who transferred loyalties to UKIP and despises Tories. Guess what? - He is believing every word issuing from the mouth of David Cameron.
The second is a host of people on radio who are are anti-capitalists and socialists and Labour voters who are listening and believing leaders of huge conglomerates who talk piffle about these cutting their own throats and leaving the UK.