I know, right? $17 per XRP is insane. Imagine a higher price. If that happens, XRP's market cap will be a lot higher than Bitcoin's. You and I know that's impossible for a coin with little use cases and large supply. The highest XRP can go is $5. For a centralized "shitcoin", that's overvalued.
What are people thinking, anyways? There are far better coins with a promising future. BTC, ETH, LTC, and SOL are one of them. I'd advise you choose your coin wisely to see good results in the long run. I bet XRP wouldn't last another decade. You'll see...

Yes, if that price is reached then Bitcoin (BTC) MC could be surpassed by Ripple (XRP) which is unlikely to happen. Even if that happens, I think everyone will lose hope in Bitcoin (BTC) & the impact of all major altcoins prices will also be destroyed. That's how we see believers, they make assumptions without any strong reasons, so that everything they say sounds like nonsense.