I miss certain parts of the early 2000's - i.e.: entertainment and music - but I do not miss that time period as a whole; there seemed to be so much bloodshed due to terrorism and the serious issues in the Middle East, and the feeling of hysteria where I lived (especially fear) which followed.
You're right about that, the wars going on in the Middle East were awful. And well, not to get too political, but I also am not a fan of Bush as a president, plus there was the recession that happened in 2008... even so, there are a lot of aspects about the 00s I miss for reasons like you said, entertainment and music, but also even in spite of all the horrible things going on, statistically a lot of young people seemed to be happy. People were out socializing more, for example. Social media wasn't a thing, the internet was a better place for the most part in my opinion. And for me personally, it was the only time of my life I felt genuinely happy, or at least content with life.