Imagine Bitcoin as a game of chess. The original Bitcoin follows a strict set of rules  just like chess has clearly defined rules that all players must follow.

Now, imagine two people are playing chess, but suddenly one of them changes some of the rules without agreement  for example, allowing a new type of move. At that point, they're no longer playing the same game. It may look like chess, but it's actually a different version.

This is exactly what happens when a Bitcoin fork occurs. When someone changes the Bitcoin protocol in a way that's not compatible with the original rules, it creates a split  a new version of Bitcoin is born. Even if this new version includes the word "Bitcoin" in its name, it's not the original.
It’s like playing a chess variant  it might resemble chess and use the same pieces, but it’s not the real game.You can’t reinvent chess, and in the same way, you can’t reinvent Bitcoin. You can create something new that looks similar, but the original remains unique.

Honestly, most of these forks, like many other altcoins, are just copies of the original Bitcoin. Most of them won’t last in the long run and will probably end up worthless. Bitcoin is unique, and it’s very hard for anything else to truly replace or outperform it.