What's the point of staying close with family?

Anonymous
My parents were abusive in my childhood, especially my mom with constant physical abuse, which she denies ever happened despite her having done it literally thousands of times.

Now they simply hold me back, preventing me from getting anywhere, and the rest of my family likes my parents because they don't know how they are behind closed doors. Neither of them physically abuse me anymore as they know that the days of me hiding under my blanket and taking the abuse is over. I will not hesitate to defend myself and I would k! ll both of them if I had to, as I've warned them and yet they see it as a threat because they think they're entitled to abuse me.

I hardly ever talk to them, only my mom continues to search for an excuse to annoy me despite me making it very clear that I don't want to be around anyone, especially her. This gets me thinking, why are people so loyal to family? People say blood is thicker than water, but I say family is nothing more than a mixed bag of people whom we ought to be no closer to than any random stranger who we see on the streets.

My only loyalty is to what is right, law and order, and most importantly, my girlfriend. That's it, I will not stand with anyone else who's in the wrong no matter who they are, and if someone is toxic, I will cut ties immediately. I wonder why others don't do the same and just keep putting family above everything else.

My girlfriend only has a grandmother left of her family, she loves her a lot although she's 89 years old and got cancer last month. I wanted to tell her that she's lived a full life, and it makes no sense to spend tens of thousands of dollars to get her an extra few months, but I kept those thoughts to myself. I agreed to pay the bills for her surgery and treatment when I saw how sad she was that her grandma was sick.

Why do people consider family so important?
Whats the point of staying close with family?
What's the point of staying close with family?
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