What do you mean “not grammatically wrong” ?

“An” is used before words that start with a vowel sound.

An orange. A cop. An easter egg. A yeast overgrowth. An hour. A hero. etc.

Oh, you’re a fanboy. Got it.

The entire “joke” hinges on the idea that that woman’s entire worth is tied into being pretty.

Uhh no, the joke is that a lot of men see women as objects and will watch her streams solely on the fact that she is a woman that they desire to bang. But yea, no matter what lens you look at it, it’s patriarchy all the way down. I think watching and developing parasocial relationships with streamers, male or female, is pretty fuckin weird anyway.