If indeed the Libra Blockchain only copies and pastes from existing projects such as the Ethereum and Bitcoin Blockchain, it means that the use of the Libra Blockchain is not much different from the current one. So, there is nothing superior here. See some new blockchain after Bitcoin and Ehereum. Blockchain is much lower quality than Ethereum and Bitcoin. I think there is something new created by Libra, so that it attracts the interest of small investors. If only those who invest in Libra only popes have millions of dollars. Meaning Libra has no global impact.
There are so many projects like that already that all they do is copy paste those project and claim to have a better platform than them, but where are they now, they still could not compete with those coins at all, and if Facebook does that, believe me that they will not get anywhere, if they were even going to copy and paste, they should clone the entire system of bitcoin, but would they ever want to give up their power.
They should have also created a decentralized coin like bitcoin, and we will then know that Facebook is really more concerned about the solution they are bringing to peoples challenge and not just the money that they are after. Well, I dont see any future for Libra because I already heard that the prime minister of France already condemned the project.