Good day,
I’m sorry but there is so much wrong with that statement that I don’t know where to start.
Even if anything you just said would be true, why would an OS for servers (which host critical infrastructure for the web like root DNS, banking, software agents, etc) be less secure then one for “client”? That doesn’t make any sense. Severs would need MORE security in EVERY way, not less.
Also, why would the Linux kernel be a “security hole”? Do you know what it does? Do you know how it compares to the Windows NT kernel or the UNIX kernel?
Have a nice day,
Ego