That's pretty lucky.
Does that make want to give up - throw my hands up in the air and say - What will be will be? Hell no.
I merely appreciate the gifts I've been given. I try not to attribute any success to my own hard work and study, and I try to do the best with what I have got. Knowing that my existence is particularly random/arbitrary doesn't really change what I do. It merely changes how I see the world around me.
Same way I view the universe really. Its existence is fairly random. There really isn't really any point to it. It'll eventually die, and so will everyone else I know. Does that make me say - What's the point - nothing matters? Not really.
It makes me cherish everything I've been given (life/liberty/health), it emboldens me to enjoy the little life that I have been given.
Life is pretty amazing. It's also pretty random. I revel in the arbitrariness of it all while I can.