Weight and height classes exist
Not in every sport. Are there weight and height classes in track and field? Football? Soccer?
Also would you be ok with a man and a woman facing off in Boxing or MMA just because they're the same weight?
The near absence of trans people in sport, tends to indicate this really isn’t much a of a thing to begin with
It's becoming more and more prevalent, don't pretend like it isn't. If it isn't stopped there will be no women in the womens divisions of sports, only trans women.
WASHINGTON (TNND) — The U.N. says transgender athletes competing in women's athletic events have won nearly 900 medals over their competitors, according to the results of a study obtained by The National News Desk (TNND).
The 20-page document examined “violence against women and girls in sports” and claims more than 600 biologically female athletes have lost at least 890 medals to transgender competitors. These defeats occurred in over 400 competitions in 29 sports, though authors did not specify specific events, levels of competition or time periods.
I absolutely know what I'm talking about, because it's basic human biology and physiology.
100% incorrect. No amount of hormones can ever change your sex. You're equating having boobs to being female, or getting a deep voice to being male, which is just absurd. Your sex is written in every single cell of your body, and it can never change. If you honestly believe what you just wrote, you really should go and get some help.
Secondary sex characteristics != sex. No one in the history of the world has ever changed sex. Never. Not a single person. It is biologically impossible in the human race.
Your chromosomes. Got a Y? You're a male. Just X's? Female. What do you think determines sex?