This is an interesting topic and whilst I don't disagree with your post to a certain extent, the view potentially neglects the fact that it took brave and forward thinking people to make changes to the system, often putting their own lives at risk on the process - It took great self sacrifice and bravery which should not be forgotten.
"It's okay that this person did or said x/y because everyone was racist / homophobic / whatever at the time" is hugely unfair to those people who actually had the humanity about them to realise that women should vote and having a romantic relationship with someone of the same gender shouldn't be a punishable offence and who put their minds towards enacting change. It's partially because of a lack of action from the masses that it's taken us this long to figure this stuff out, which realistically seems pretty fudging basic, it's a damning reflection on humanity imo. The daily mail phalanx who pretend to be oppressed at every chance forget that it really wasn't long ago that pubs had "no blacks, no Irish, no dogs" signs and that was just considered fair enough.
I listen to the "Empire" podcast and they have various historians on who to this day have to have security escorts when doing talks because they get threats due to them telling the truth that people don't want to hear about the impact the British empire had on the world (they do go in to other empires, just wanted to mention that before anyone gets worked up or feels personally called out
). It's quite something that even in current times, professional historians discussing things that some would rather have swept under the carpet puts them at risk of violence.
Edit - Changed the wording as I wasn't intending to imply that KDD was ignorant of various struggles.