Do you also consider affirmative action racism?
Is women’s sports blocking male competitors misandry?
Misandry is a strong word for it, but I would say it's not ideal. Of course, there's also the broader issue of the most physical sports being, by their nature, a discriminatory (in the most literal, not moral, sense of the word) endeavor, from weight to height to genetics, and since I'm not a big sports person to begin with, I try not to have strong opinions on the subject.
I do have strong opinions on non-physical sports with separate women's divisions, and especially those which bar women from participating in non-women's divisions.