a great deal of these 'vulnerabilities' in OS X are from open source software projects which release the advisories.
i guess you haven't seen any security updates from Ubuntu/Redhat or any other UNIX, before have you?
when you release a UNIX distro with a ton of software using many different packages, frameworks and programmers with varying levels of appetite for security completeness, you are going to run into a myriad of issues.
MS also have their issues, but you can't compare apples with oranges.
Not only that, but it benefits for city folk are heavily debated, while the country folk will reap much of the rewards. I don't have a problem with country folk, but I do have a problem with us subsidizing their life choices by living remote from services offered in heavily populated cities. Hell, I'd love to move out to the countryside, and have all the services offered in a city location.
I lived in Sydney for 35 years before recently moving to London for contract work, and the last 6 years of that I had a 20 MB pipe, without the need for Telstra - the peddlers of an over the top expensive product.
The govt all the long wanted Telstra to stump up for NBN and when the pollies rubbished their proposal, it seemed like the smaller operators had a chance to collectively provide services at an equal rate.
Anyway guys, the NBN may come to your door, but in order to use it you'll have to shell out up to $450 and $750, and up to $3,000 to get a connection. Good luck with that.
These public-private consortiums are ruining our country, hiding our debt and placing the burden on the citizens to stump up extra for services that should spearheaded by govt - if they deem them so important.