Exactly, if everyone's plastic surgeried, then it's a complete lottery who in the next generation gets attractive genes.

Without plastic surgery, there's more assortive mating which preserves attractiveness from parents to children.

Either way, people are just trying best their chances. Naturally or otherwise, they (we) know what is attractive, and some are more willing to go to extremes to get there and be more like what they want. https://www.britannica.com/science/positive-assortative-mati...