I'm sorry, "not all men" is a bad faith argument and a classic derail.
The fact that the vast majority of men do not commit crime is quite relevant to the argument that we should "teach men not to do ______".
No, not all men are opportunistic predators, but statistically speaking men make up the vast majority of people accused of perpetrating sexual assaults.
Sure. Because women who commit sexual assault are ignored by the legal system and the police.
If you look at actual scholarly studies, the ratio of female perpetrators of sexual assault is far closer to 50% than 10%.
For instance, this is a multi-national study of college students, asking them about the last 12 months of their most recent relationship:
http://pubpages.unh.edu/~mas2/ID45-PR45.pdf
Large sample size:
Participants included 7,667 university students from 38 sites.
The findings:
(page 412)
Almost 3% of men reported forced sex and 22% reported verbal coercion. For the forced sex items (analyses not shown), 2.4% reported forced oral or anal sex, and 2.1% reported forced vaginal sex.
For women (page 414):
As shown, 2.3% of the sample overall reported sustaining forced sex from their current or most recent romantic partner, and close to 25% of the female sample sustained verbal sexual coercion. For the forced sex items (analyses not shown), 1.6% reported that their partners forced them into oral or anal sex, and 1.6% reported that their partners forced them into vaginal sex.
(For men it doesn't say "from their most recent or current partner", but if you read the methodology, the entire study (for both men and women) is only about the most recent partner)
Another: http://www.cdc.gov/ViolencePrevention/pdf/NISVS_Report2010-a.pdf
Table 2.2. page 19.
In the last 12 months, 1.1% of men were "made to penetrate" (e.g. being forced into vaginal sex, among other things, which is rape). Of men who reported being made to penetrate, 79.2% reported exclusively female perpetrators.
During the same 12-month period, an equal 1.1% of women reported being raped (Table 2.1, page 18).
So no, it is quite dishonest and misandrist to pretend that sexual assault is only committed by men.
And it is also quite stupid to pretend that it's valid to state that "men need to be taught not to do ______".