Unfortunately, the US government do not see it that way, they have their own perception and judgement based on their constitution and framework and they see Facebook's Libra coin as a big threat to the banking industry and the strength of the dollar, they do not want interruption and they do not want a new financial power coming in to challenge them.
That's certainly true, mate. It's the usual behavior of governments worldwide, as they don't want an alternative currency taking over the world. Their main intent is to keep control of their citizens whatever the cost may be. In the case of Libra vs the US, I believe that the government is afraid that Facebook's infamous cryptocurrency will take over the USD. We've seen President Trump's comments recently where he said some negative comments about Libra, while praising the USD in every way.
Even if Libra doesn't become a reality anytime soon, the US government will surely devise a digital currency of its own. That would be a modernized version of the USD, with its very own Blockchain ledger controlled the central Bank in the US (in this case, the Federal Reserve). This would be preferable over Facebook's cryptocurrency which has the intent of violating people's privacy in every way. Despite what people think about Libra and crypto in general, it's the way of the future and we cannot ignore it.
Nonetheless, the odds of Facebook becoming a central Bank in the future, are zero to none. This is widely because, regulators have become too fierce against Libra's launch with the aim of destroying the project altogether. Successful or not, at least we have decentralized cryptocurrencies like Bitcoin and Ethereum which are more than sufficient for our daily transactions without middleman. Just my thoughts