For many it’s a show of support for what is widely regarded as a men’s rights movement, those fighting for men to be in women’s sports, spaces, prisons, rape crisis counselling sessions to name a few. Fighting for additional rights at the expense of women.
It might not affect one (you) personally, but one can have empathy for those who it does affect. It comes from a place of privilege not to in my opinion.
So yes, many have an issue with it. If you don’t, maybe find another thread to focus on?