It's not the funniest joke, but I picked that specific comic for 2005 because it shows how much Sinfest has changed when discussing political issues. In 2005, political topics are the setup for a joke without any serious meaning or connotation. In 2015, those topics are the main purpose of the strip, conveyed seriously with comedy as an afterthought.
The first one is lame too.
It's not the funniest joke, but I picked that specific comic for 2005 because it shows how much Sinfest has changed when discussing political issues. In 2005, political topics are the setup for a joke without any serious meaning or connotation. In 2015, those topics are the main purpose of the strip, conveyed seriously with comedy as an afterthought.