Governments are against everything that do not provide them taxes and revenue, privacy coins being anonymous and un trackable are the most troublesome for govts that want to track transactions, generally govts are against all coins but they cannot do much about them, even the fiat backed stablecoins like libra is not being supported or encouraged by govts rather they want regulations and taxes and control over them.
That's certainly true, mate. All governments want is supremacy and control over their citizens. They achieve this by making people use their national currency over any other alternative they can't control. Their main excuse is money laundering, but the truth is that illegal activities also happen within Fiat. Money is a double-edged sword as we know it. It can either be used for good things or bad things. Knowing that governments have paid attention towards crypto and Blockchain technology, shows us how worried or concerned they are.
Governments believe that alternative currencies like Bitcoin, and Ethereum will become a threat to their current monetary system. That's why they've been implementing fierce regulations in order to avoid crypto from overcoming Fiat anytime soon. But it's very unlikely they'll succeed as the revolution has just begun. Blockchain technology is too big to fail nowadays, which leaves governments no choice but to join it or be left behind.
As for privacy-oriented cryptocurrencies like Monero and Grin, they'll always be the number one target from central banks and governments worldwide. This is largely because, all transactions are obfuscated which prevents governments from taxing these cryptocurrencies. On the hand, transparent cryptocurrencies like Bitcoin and Ethereum have a greater chance of becoming accepted by worldwide governments because it's easier to track & trace transactions for taxation.
Nonetheless, the future of privacy-oriented cryptocurrencies largely depends on how many people support them. Despite the ever-growing restrictions from governments worldwide, people need to find alternative ways to continue using these cryptocurrencies in order to keep the ecosystem alive. Considering how big Blockchain technology has become, it's becoming more difficult for governments to be able to shut it down in every way. Which is why, I believe that privacy coins and ordinary cryptocurrencies like Bitcoin and Ethereum will be here to stay for many generations. Just my opinion