Most of those things are just observational facts, what makes for attractive men and women is fairly well known, genetics is some large proportion of that, and some people are just unlucky.
I think the best way to look at this is a balanced way that accepts that the bad comes with the good, that we have these lives and bodies which are generally worth living even if you're a foreveralone.jpg and that we're the beneficiaries of a long unbroken chain of people who mated and selected each other for all the same reasons, for genetic fitness and all those good things.
To do away with those mechanisms would really just to say you'd rather still be green goo in the early soup of life because then at least it would be fair because nothing better was ever created.
It's kinda like communism, which is be jealous of those that have more, be ungreatful for what you do have and want to flip the system on its head to your own detriment as long as it brings everyone else down to an equal level.
Just be happy you've got the life you have now and how much better that is than being something way further down the food chain, shed all the relatively inequality jealousy and be glad about the absolute wealth you have.
And if you can't do that then go and get some historic perspective, look at even just 500 years ago what the average lifespan was, how rich people were, what dental care was like, how brutal medical care was, how many people starved to death every year, etc.
The Pareto distribution of achievement is so steep that it doesn't really matter where you are on it, there's always someone with vastly more looks or money than you, the 80% are jealous of the 20% and the 20% are jealous of the 1% and the 1% are jealous of the 0.1%
Again get some perspective, make the most of what you have. Or just shoot yourself in the face.