Do you think a house gets sold every day, or that everyone ends up buying? Or that they even get that $15k as take home?
The industry around home sales is absolutely gross, but the broker is taking a cut here. Not all real estate agents are brokers, in fact most are not. On average, most agents are making as little as $60k/yr and as high as $100k/year, region dependant. Average is going to be around $85k. Above that $100k mark is the top quartile, and above $130k-ish is going to be the top 10%.
It’s not as lucrative as you think it is.
Clearly, you should be in real estate immediately. It’s obviously super easy, and with your math that’s super accurate and in no way an understanding far separate from reality, clearly you’ll be a multi-millionaire within a few short months.
Good luck!