Feminism encompasses a whole lot of stuff, equal treatment is one aspect, and nobody is disputing that.
But then a whole lot of stuff is also under the feminist label, e.g. TERFs are feminists and they are a hate group against transgender people. Does hating on TERFs make me a misogynist? It's not limited to a few ratbags either, one senior professor at my local university is a TERF, she has written a lot of anti-trans stuff and is considered an important figure in the local feminist academic community.
Then there's the issue of data that feminist groups now and in the past have spread around. If your argument is about the data then someone else citing conflicting data or the basis of that data isn't being "obtuse". I know it might seem that way if you're used to just citing figures and everyone shuts up automatically because "lol hur i'm right" but open debate doesn't work like that.
One example from the 1990's was the meme that domestic violence reports spike up 40% on superbowl sunday. This was spread by feminist groups and widely reported without any fact checking. Unfortunately, there was no basis for the figure, and it contradicts figures from domestic violence shelters. This was a problem because they claim was that 40% more women need domestic violence shelters during superbowl sunday, but there is no data from shelters to support this. Does pointing out that the 40% spike didn't exist make me a domestic violence apologist?
Feminist groups have a history of spreading around facts and figures that don't stand up to journalistic fact checking. So sue me for check citations, other sources, etc etc. Disputing the numbers of rapes doesn't mean someone is doing "rape apologia". If I was to claim that there's a murder epidemic but I couldn't back that up with citations, someone who said "just stop right there, murder is actually down, not up", would I be entitled to label that person a "murder apologist"?