What raises the price of coins? A big demand. When people want to buy this token for some reason. Whether it's because of the news, or because of the hype, or because of something else. If the coin that gives you complete privacy is not popular now, it means that people just don't need it. They are used to investing in something that is trendy now, and for the current situation, it is about NFT.
People don't care about privacy these days since they have nothing to hide. Convenience/ease-of-use goes on top of everything else in today's society. As long as people don't care about their privacy, anonymous cryptocurrencies like Monero and Grin won't be going anywhere. Expect to see a decline in Monero's price because of governments' pressure towards exchanges to de-list it. After all, taxing XMR becomes a difficult (if not impossible) task to achieve. I'd suggest anyone considering Monero as a serious long term investment to look elsewhere. Just my thoughts