The extremes aren't attracting voters though. Labour tried to move left and got trounced. Today's Tories are nothing like Thatcher's lot, the majority of them anyway.I think there's some truth in what you're saying. Something I've noticed in the last 5-8 years is the absence of a middle ground, everything is polarised, and everything is either extreme left of right. I think it's part and parcel with the rise of social media in some respects.