>>9860680>2004 I'd say one of the major differences was that LGBT stuff was not nearly as accepted and mainstream as it is now. That's definitely a massive cultural shift that happened in the late 00s and 2010s.
America still sorta seemed like a Christian nation under Bush. The nature of the culture was was completely different. People were shocked that Schwarzenegger became governor of California; as if that would shock people now!
Also, in 2004 the internet was not as widely and constantly used as it is now. in the early to mid 00s there was still a residual 90s sense that 'computers were for nerds'. Damn things are different.