Okay, kiddo, imagine you have a big group of friends who all want to play a game together. They vote on what game to play and everyone gets to have a say in what they want. This is like a union - it's a group of people who work together to make decisions and take care of each other at work.
But sometimes, some big boss or company doesn't want the union to exist. They might be afraid that the union will try to get them to pay their workers more or give them better benefits. So, they do sneaky things to try to break up the union. This is called union busting.
Union busting can look like a lot of different things. The boss might try to scare the workers into not joining the union by threatening to fire them or make their job harder. They might hire special lawyers to make it harder for the union to do their job or spread lies and rumors about the union to make people not like it.
Sometimes, they even try to make the workers fight each other by pitting different groups against each other. This is like saying, "Hey, you don't really need a union - look, your coworker is doing just fine without it!" or "Why should you have to pay for your coworker's health care? That's not fair!"
But remember, just like with your friends playing a game, it's important for everyone to work together and have a say in what happens at work. Unions are important because they help workers get treated fairly and have a voice in their workplace. So, if someone is trying to get rid of a union, it's important to remember that it's not because the union is bad - it's because the boss or company is afraid of what the union can do to help the workers.