I don't know anyone over here that has any kind of downer on beer with their folk. In fact we get explicit 'folk and ale' mini fests. But the other side of the UK scene is that folkies are often into real ale and actually believe in supporting real-ale pubs as these in their turn support traditional industry and local community. So it works together: amenable landlords host folk sessions, they get in real-ale from small breweries, folkies drink their beer. Result - everyone's happy!