Lol I've been in the bitcoin community since 2012. It is clear you have no idea what you're talking about. Early on we worked on colored coins that did exactly this. I'm just wondering why no one has continued the work.
Because such tokens have no real world utilities so nobody is really interested in using them. So far the tokens we have seen were created for pump and dumping and making the creators rich.
There are of course stable coins that may have some utility but they are centralized which makes then worthless in nature since we have centralized money and payment systems already.
Ethereum is also a coin, but you can mint NFTokens on its chain.
Ethereum is more like a platform not a coin, and ETH is referred to as the "fuel" for smart contracts not an actual coin.