She is and was unpopular, BB2, get over it. Just because your uncle sold a couple of toilets in the 80s doesn't transform her into a saint for everyone else. Also, 'many' isn't two, unless that's all you can count up to, as your name would suggest.
Hated people's deaths are generally welcomed, although the news might shock you. If you happen not to have a problem with this woman, perhaps you can stretch your obviously retarded imagination and accept that maybe you'd be happy to hear of, say, the death of a person you felt had done some terrible things, and work your way to a general conclusion from there. Or you could retain your solipsistic world view in which all truth is directly related to your own experience and no-one else's, and this and only this constitutes the objective world (but unfortunately doesn't explain why many people think you are wrong).
And a comparison between Thatcher and anyone else is ingenuous to say the least. "She's better than Hitler" may be true, but is irrelevant within the context of "Will you be happy when she dies?"
28 going on 5.