>sue their parents for wrongful birth

Nah, not when there's an obvious and simple remedy.

If it was simple, people would be doing it left and right. More like 'they got me hooked on heroine'.

I think parents should be allowed to hit their kids for being ungrateful little runts.

Moreover, parents should own their kids since they gave birth to them. They should be legally be able to take every decision for them, and be their guardian, until they die. They gave their children birth after all.