I like the U2.
Saw them in a dump called Headliners in 1982. Me with my fake ID and loving every minute of it.
Unforgettable Fire is a great album. One is a great song. And i don't think any member of U2 thinks Lemon should be taken seriously. I don't know why anyone else would.
That said, for U2 bashing, Achtung Baby was OK, everything after that has enhanced vocals (Bono's voice is horrible live) and offers only the occasional hook. They should have retired 20 years ago. But then again, even more pathetic than U2 are the Stones. They should have retired 40 years ago.
When U2 writes anything that approaches the ferocity of Gimmee Shelter, let me know. When U2 performs a single song that compares to Paint it Black...please let me know. The Stones might not have been relevant for 20 years, but they had a stretch of being one of, if not the, greatest rock bands in the world. U2 wasn't the best rock band on half of their tours with U2.
Disclaimer - any argument about music is inherently subjective.