You've got an onclick that ends in "return false" on your links so of course your links don't work.
I assume that whatever GA code you've got on there modifies those links (adds tracking stuff or whatever) and then takes care of the redirecting.
Here's the thing: we're nullrouting the GA domains, so the GA code never gets downloaded or executed.
In other words: users that are blocking GA (those with GA domains in the hosts file, a privacy program, a personal firewall with a privacy module/option,...) can't click your links and you probably don't even know you had those visitors if you're relying on GA for stats.
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