I don't think anyone would argue we shouldn't know about these people faults and mistermeaners.
Certainly these aspects should be part of any overall discussion. Taught in school etc.
I think the point is about defining a person in a short sentance. The definitive statement.
Gandhi was a......
Mother T was a.....
Einstein was a.....
It reduces their lives into a single word.
What are they first and foremost know for. Should be known for.
If Gandhi's mysoginy was his life work, it's global impact exceeding his influence in change through non violent means, then I guess it's fair to refer to 'Gandhi the mysoginist(ic bastard)'
I think it's also problematic if one defines someone like Gahndi as mysogenistic first and foremost, as you then have to go on to describe the great things done by a mysoginistic bastard.
i.e. People start thinking it's ok to be a mysoginistic bastard , just look at Gandhi and what he did.
( I know mysoginistic bastards probably don't give a hoot about Gandhi , am just trying to illustrate the point )