[rvz]

I somewhat agree with your statement but you should have explained further.

OpenBSD actively goes the extra mile in creating new security mitigations and ideas and the developers have always raised the difficulty of finding a 0day in the default install of OpenBSD. They are the creators of OpenSSH, kASLR, pledge(), W^X, etc and some of them are also the maintainers of LibreSSL.

You can still 'think' OpenBSD is more secure than FreeBSD, but I know it is still more secure.