I'm probably being too charitable towards the old stuff/too harsh on the new stuff.
Also the America-brained topics are more of an endemic issue of the anglo internet, but even German sources had a lot of stuff around 2017 talking about Trump and the like - and yes, unfortunately American hegemony means that it's relevant even abroad.
gud meem
for academic-reading-theory it's often the reverse i feel, which is neat (often the older books have ideas and suggestions which are outdated, especially wrt ecology)