Sorry, but you don't quite understand what sexism is. A quick review is in order.
For hundreds of years, women were in effect property of men. They would go from being controlled by their fathers to their husbands. Their legal rights were narrowly circumscribed, and their practical rights were even smaller.
This is on the decline, but the changes are quite recent. Women couldn't vote until 1920. It wasn't until 1974 that women in the US could generally get credit without a male cosigner. It wasn't until 1993 that the US fully outlawed a husband raping his wife. It wasn't until 2005 that half the law and medicine degrees went to women. And, as Fowler demonstrated, there is still significant anti-woman bias backed up by institutional power, even at newly formed companies in that most forward-thinking industry, tech.
That's what sexism is: gender bias plus systemic power leading to broad harm in a way that maintains that systemic power.
So no, there's no such thing as "sexism against men" because even if non-men had sufficient bias, they don't have the power. Most of the things you're complaining about are not "sexism against men", they're anti-sexist action, working to dismantle centuries of oppression.
Now I get that we dudes losing our systemic power is uncomfortable. Loss of privilege is still a loss, and loss is never fun. But you have a choice. You can retreat into MRA/incel lingo, become bitter over that loss, and eventually die cranky about how things were better in your day, when men ran things. Or you can decide that sexism is bad, work to dismantle it, and be pleased to see a little progress toward freedom. I know which I'm picking.