Ahh... I'm not sure if it *is* sexism or not when it's your own sex you don't like.
I am male, and I wouldn't say I dislike men; but I do tend to think some of the criticisms made of them do have a lot of basis, and I do occasionally wonder if women on the whole are kinder, nicer beings. I find the theory quite credible that the way animals (including humans) have evolved would itself tend to give males and females different characteristics or tendencies.
Is it sexism if you really believe that, on a biological and psychological basis, there are real differences between men and women which are inherent to their respective sexes? Not out of bias or dislike of one sex, but just because you believe the scientific evidence supports that conclusion? I don't know.
I used to know someone who was generally regarded as rather right-wing in his views, and he was a very intelligent, scientifically-literate man (a member of Mensa); and he believed that there are racial differences in intelligence between various ethnic groups or races. For instance, he claimed that, on average, the most intelligent race is Polish Jews (he was not one himself); and he also said that American Blacks are, on average, less intelligent than American Whites (he was a White American, living in Melbourne, Australia at the time, which is where I got to know him). He had no dislike of Blacks that I am aware of, no bad feelings, no desire to discriminate: he simply believed that the scientific evidence for this was strong enough to support the belief.
Is that racism? I don't know. I think I have read elsewhere that the consensus of scientific opinion does not support the idea - so possibly my friend was misinformed, or had outdated information - although, going by the kinds of books he read, that doesn't seem likely. But the point is he really believed it to be factually true, and I would not call him racist just for that. He had no desire to form discriminatory social or political policies based on that, and that is a saving grace, because that is the line I would consider taboo.
And I have to admit that, when there are obvious physical differences between people that are inherent to race (skin and eye colour, appearance of hair, physique, and so on), it is not itself unreasonable to suppose that some mental or emotional characteristics may similarly be inherent to certain races - although I don't know if this has actually been scientifically verified.
We bandy terms like "racism" around rather freely today - maybe some would think me racist for merely raising the possibility I just did about racial differences possibly extending into mental or psychological characteristics.
Regards, Michael.