Oh boy, they give blue checks to anyone.
It is established scientific fact that a male penetrating a female during sex increases the chances of the female becoming pregnant from 0. It does not matter how much money one spends on preventative contraception; nothing is 100% fool proof except for abstinence. In other words, if you have sex, you increase the chances of having a baby.
Besides, it’s disingenuous to call them, and the resulting offspring, foreign invaders when you open the gates and let Dick come inside.