Are you looking at opinion surveys or actual exit voting numbers? Because women are more likely to vote democrat across all age groups than men. Are there opinion surveys where young men are more in favor of abortion than young women?
Freegards
Every survey ever taken among the general public determining support for abortion, young single men are ALWAYS by far the biggest supporters.
Among democratics only, I am sure young women who support it are a reasonable number, but the single biggest group that supports abortion in America, are single young men, period. No other demographic remotely comes close to their level of support.