Charles has to.open the cardano for USDT whales, those companies like Tether and Circle wants control of their stablecoin. if Charles is not allowing them because of his belief in decentralization, ADA may really have a slow crawl to its higher price per token.
it may also have a hard time getting ETFs. but i do think ADA is also undervalued.
Isn't Cardano a smart contract platform? Developers can create smart contracts to their hearts' content. It's possible to implement some sort of "blacklist" feature on stablecoins if they want to. Just like they've done with ETH and similar chains. I know Charles wants to defend decentralization, but there's nothing he can do to stop centralized stablecoins from taking over the platform. Especially if the community (validators of the Cardano blockchain) approve it.
What I like about ADA is that development happens at a slow and steady pace. It's not overhyped as other coins that are often unreliable and centralized (eg: Solana). Because this, market prices are stagnant. But that doesn't mean ADA won't have a future. There are many undervalued coins this way. People tend to value centralized chains more than decentralized ones because it's more convenient for them. It's a "free market", anyways. As long as decentralization persists, nothing else matters.