What's the intention of "(What's So Funny 'Bout) Peace, Love And Understanding"?

[EinsteinsHund]

@Thudlow_Boink

Just reading the title , you might assume this, but pretty much all the rest of the lyrics besides the title line are pretty pessimistic and desperate.

Yes, the verses ARE pessimistic, but lament the lack of the ideals the chorus names, so the whole song sounds like a plea to follow those ideals.