I’ve had the opposite. I wake up at 8am every day thanks to my alarm clock. Even if i go to sleep at 11pm the night before and wake up at 8am every day for a month (tried this), my natural wake up time sans alarm clock is 10am.

Got one of these, still doesn’t help me wake up in the mornings, even if I get 8-9 hours of sleep. My natural wake time is 10 am.

If it is true that this is caused by women not speaking up in class, then yes the onus IS on them to speak up more to change the attitudes.