Your reply is the autistic one. Csgo is a simple but very competitive game, hence the fun should come from competing, learning new things, getting better and better.
There are 7154358435843 other games that are definitely more fun / complex / interesting / learning / whatever / JUST BETTER than csgo, but not even close to being as competitive.
If someone spends 2000+ hours in a highly competitive game and is still complete shit at it but somehow still finds playing more fun, well, I must say, that is strongly related to autism.
The only exception is playing with good friends only, but that is just having fun with friends, not having fun from csgo.