*Yes, the male privilege argument is far too black and white for me. People can have privilege in their lives at different times. So, for instance, I'm relatively young and fit. I can run for a bus. My brain and memory work well. Is that overweight man sitting over there on a mobility scooter, much older than me, really more privileged than I am because he's male? I could take him for God's sake.
It still comes down to wealth and circumstance to me, backed up by drive, motivation and a desire to succeed. If you're a male and you lack all of these, and there's a female who has all of these - which one is going to succeed and have a better life?*
You're comparing apples and oranges.
You should compare yourself to males that have the same background as you. Are you on the same rung on the career ladder ? Do you have the same wages? Did you have the same opportunities? Are /were your ideas ,suggestions,projects etc taken as seriously? And so on.
The disabled man should be compared to a disabled woman in the same position. How were they treated when they first started displaying symptoms. Length of diagnosis. Type of treatment etc. Was one of them dismissed, gaslit, told the pain is normal,fobbed off etc.
The way you put it means that no isms exist , because there will always be someone more worse off. That's not how it works. That's not how any of it works.