The bourgeoisie are people who have lots of money and are in charge of things like businesses and governments. They are usually part of the upper class and have a lot of power and influence in society.
Imagine you have a big toy box with lots of toys in it. You are the boss of the toy box and get to decide which toys you want to play with and when. The bourgeoisie are like the boss of the big toy box of society. They get to decide how things work and which things are important.
Sometimes, the bourgeoisie can be very rich and powerful and it can be hard for other people to have much say in what they do. This is why some people think that the bourgeoisie are unfair and that everyone should have a say in how things are run.
So, the bourgeoisie are a group of people who have a lot of power and influence in society, and sometimes this can be a little bit unfair.