This is a question I haven't thought about since 1989. But I went to see the film at the weekend so it brought it to mind again.
I think a feminist is someone who consciously sets out to help improve women's lives in big or small ways.
So in that sense Margaret Thatcher not one. (Although I didn't know about the example re prostitutes and Yorkshire Ripper investigation someone mentions).
However like another poster on the thread I was about 10 when she came to power. If you were an ambitious lower middle class teenager like me I think she certainly represented something to aspire to in the 'woman in a top job' sense.
On the various 'Thatcher the wrecker' views on the thread: I was interested that the film (which I hated BTW) made her fallings-out with the rest of the Cabinet more about her authoritarian personal style (as opposed to consensus-decision making that had driven previous Govts), rather than about differences of opinion re politics (although the two are related).
And on the film: although I'm not a Tory I hated the film for quite a lot of reasons, not least the dementia angle which I thought was a pretty cheap way of dealing with the Thatcher legacy. Dementia aside, you could have made that film about any head of state or political leader anywhere in the world at the end of their life, IMO. How about a 'regrets, I've had a few' 80s trilogy - next up Arthur Scargill, then General Galtieri for a grand finale.
So, feminist icon, no. A kind of inspiration for some (whether or not they liked her policies), yes. Film, 1 out of 5 (maybe bumping it up to a 2 for good performances from the Carol Thatcher actress and Jim Broadbent as Dennis).
Did anyone whose seen the film really like it (or is that another thread)?