Due to the possibility of hell is it wrong to have children. Think about it if hypothetically you or I go to hell even for one second wouldn’t have been better if our mothers never birthed us. https://www.minds.com/newsfeed/1110017504393457664
The conclusive Islamic answer is that it is definitely not unethical.
In fact, it is encouraged and a good action to have children because the Prophet (SAW) said:
"Marry, for I will boast of your great numbers." (Sunan Ibn Majah)
The possibility of Hell does not make it unethical.
It were atheists who tried to do it claiming we can't force someone to be in this world. We muslims make children so that they can be paradise and if they disobey their lord then they deserve to be in hellfire. If one makes sins but also repents, Allah's mercy is sort. Allah is most merciful, the thing is if one is careless he will go the hell fire.