This is just an opinion and not a very sensible one at that. The Linux TCP/IP stack is one of the most scrutinized network stacks in the world and more than likely free of bugs that coud lead to a server takeover.
lols, what about the sendfile and other vulnerabilities that lasted decades. Linux just does not have a secure mentality, it has a hacker mentality, maybe acceptable for a lot of uses, but it is what it is.