I was too young at the time to know much about Mrs Thatcher, but your gut-level hatred is more a reflection of the hatred of the media at the time than an objective reflection of her ideology. When you build a state beyond its power of self-sustinance, as happened in the 60s and 70s, and is much the same now, you reach a point where that state will fail, either in a controlled fashion, as Thatcher managed, or else through bankruptcy and chaos, as Greece is going through at the moment. Allowing mass immigration at such a point, and especially of people from an utterly alien culture, is just more fuel for the fire. Advice: calm down, understand economics, think about humanity.