The physics of someone cracking my passphrase and the physics of someone cracking my Yubikey are both in the boil the oceans amount of energy.
I'm fine not letting a usb device masquerading as a keyboard have access to my password database.
Remember: "When you lose your YubiKey or someone else gets access to it, your database is not secure anymore."
You don't store your password on the YubiKey, you use it as a second factor in addition to your password.
Do you know what a YubiKey is when you argue against it?
The physics of someone cracking my passphrase and the physics of someone cracking my Yubikey are both in the boil the oceans amount of energy.
I'm fine not letting a usb device masquerading as a keyboard have access to my password database.
Remember: "When you lose your YubiKey or someone else gets access to it, your database is not secure anymore."