Your experience with family makes this view reasonable. To understand why people want a family, you need the first building block of understanding what a positive, trusting relationship can feel like at its best.
It's like the first time you tried milk it was spoiled and sour, and now you see people drinking milk and you think 'wtf'? Your experience with physical abuse from your parents is going to alter your perception. Personal relationships, including family, usually have their ups and downs, but not downs like that, like that sour milk made you sick, and now you have a negative psychological response when you see milk so it's hard for you to give it a fair try.
In general, statistically, people are better off with family. People need human interaction and connection to fully and properly function, and family has a built-in biological connectedness that - in a typical case - makes that connection happen easiest. You can find connectedness elsewhere, however. I'm thinking anecdotally of 3 different lgtb people I've met at different times in my life that were cast out by their biologic family and made their own "family" among unrelated friends.
Again, though, even healthy friends and family relationships will have fights and disagreements. It's a balance of positives and negatives.
You said you're someone who likes to play devil's advocate. To argue both sides of this issue you need to experience that human connection in a positive way, so you can sincerely acknowledge the positive side of the balance.