Woah, harsh man. xD Judging thirty years of music by less than 30 songs is just straight up delusional, hard to put it any other way. It's about as sensible as judging your grandmother by what John Wayne Gacy Jr. did, or judging the entirety of rock n roll from 1950 to 1980 by Terry Jacks' Seasons in the Sun.
The fact that even you found a song you like out of a mere 30 pop songs from 3 decades you hate actually goes a good ways towards disproving your own hypothesis. If there was one song you like in that minuscule sample, statistics would suggest there are thousands of songs from those decades you would like.
You don't have to like 80s, 90s, & 00s music. But claiming that this list is a sensible example of why those decades aren't good is quantifiably foolish.