The eth is as bad as it is good.It is widespread, it's good.On it many bad projects are built it is bad.
Anyone can create their own tokens to Eth smart contracts and blockchain given that you have some basic knowledge for the creation to be exact you can also search some easy tutorials from google and youtube so the creation is not that hard to understand so we can't prevent people from creating projects under Ethereum the same thing with other altcoins that support smart contracts.
we can indeed make crypto currencies in the form of tokens, from ethereum, eos or stellar platforms,
but maybe the tokens you make will become trash tokens, if there are no projects,