I travel with my laptop so I worry about it being stolen... So I could be wrong about this, and if I am please tell me. From what I read if you use full disc

I travel with my laptop so I worry about it being stolen... So I could be wrong about this, and if I am please tell me. From what I read if you use full disc encryption, bios password, and set the bios to go direct to hdd for booting on a macbook air, you've essentially bricked the laptop. You can't get the laptop to log in with no guest account and only the one user account. You can't get it to boot to another device because of the bios lock. You can't change the boot device with a bios password set. Finally you can't reset the bios password because to do so you would need to remove the DRAM per the macbook bios reset instructions, and that's not physically possible on an air since it's soldered down.