Because most memes being created are just some image with text over it changing its context. Which are just rehashes of rehashes
Even 4chan has been boring lately, all that ever comes out of /pol/ now a days is "Lets take this thing people like but make it into a hate symbol hrhhrhrhrhr"
Big political event happens that everyone has a fuss over for a week until the next thing happens
2016 was a real hoot-n-holler but everything post 2016 just feels sameish, boring, stupid, and unoriginal