Q: You think fingerprint biometric security is actually less secure than passwords. Why?
A: Because you can change passwords and it is not trivial to extract your password from you, if you don’t want to disclose it. If you get arrested, your phone locked with a good password and activated encryption requires a lengthy forensics process to unlock, with a judge regulating it. With a fingerprint, they just swipe the phone across your handcuffed hands and have access to your data.