No, Frax.convex pools are not unsafe. The pools are designed to ensure that no one can control your deposit or take your coins. Instead, all transactions are secured through a decentralized system, which ensures that no single entity has control over your funds. Furthermore, the pools are also audited regularly to ensure that all transactions are secure and that no malicious activity is taking place. As such, Frax.convex pools are a safe and secure way to store and transact with cryptocurrencies.