And regardless of parents and younger brothers, they are not sensible at all and are not responsible to anyone, even if they are related by blood. Society is realistic. They can't give up the most basic morality of being a human being because of blood relationship, but they seem to ignore the most basic respect between people.
I am a person who respects my parents very much. I am not modest to say that I should be a dutiful son, but the premise of dutiful son is that parents pay for themselves.
If you don't care about and love, but you prefer boys to girls, don't distinguish right from wrong, are unreasonable, don't know the basic principles of being a man, treat your children worse than your friends and even tend to abuse them, then such parents.
Keep a distance (from sb.)