you're going to count the blocks in a road, find out there are more of one color than the other, and call it sexism? that's pathetic. sexism is when members of one sex believe that members of the other sex are less intelligent, able, skillful etc. (https://dictionary.cambridge.org/us/dictionary/english/sexism) remember how many years ago, women were not allowed to vote? that was sexism. this is not. this is you being foolish and trying to make yourself look like the victim. you don't have to play on this server if you don't want to. they are using a simple method to create two teams. i'd really like to know how this server made you feel as if you are lesser than the opposite sex.
If today is April 1st in your time zone, the new textures are simply an April Fool's joke. If today is April 2nd or anything later, you should restart Minecraft and come back, and the old textures should come back.
this is just an april fools prank from mojang. the textures should most likely go back to normal tomorrow, you can tell they're joking if you look at this
If you put your mouse over the top left corner on one of the widgets (like the list of submissions), you will see an arrow. Click it, and there's a "remove" option.