"If men aren't responsible about their own contraception, they are laying themselves open to manipulation by women." Doesn't that sound a little like "If you're not responsible about what you wear and where you're walking late at night, you're laying yourself open to rape"? This is why we need a male birth control pill, people. Manipulating a man on a one-night stand while he's drunk and horny doesn't excuse you from MANIPULATING him into fathering your child.
Consequences: Should manipulated fathers be required to pay child support? Does this attitude (which some men have come to fear and stereotype women as having) hurt women like me who are "honestly" promiscuous? Should whether the father was inebriated at the time matter for his legal paternal responsibilities? Does this attitude act in the interest of women, or against us?