Does that go for females in the police force or fire service too? Are you dead against women being allowed into these jobs?
Less strength and speed to intervene physically to protect or rescue your children from a burning building or from would-be attackers? Not worth the risk, eh?
Would you strongly discourage your son from wanting to join a profession caring for children or the elderly or vulnerable when he grows up? Artificially limit his life and career options because of his sex? Make sure you steer him away from the dolls and toy kitchens at nursery, just in case?
I presume you must similarly strongly disapprove of SAHDs, then, as statistically, they're much more likely to deliberately harm their own kids than a stranger is?
Of course, you're entitled to your own opinions and decisions, but history is full of women, black people, Irish people, disabled people etc. etc. being denied life, accommodation and employment opportunities, mainly on the basis of people 'just following their gut instincts' and 'well, you never can be too sure with them, can you'.