I listen mostly to darkwave and associated genres. While I can parse the words and the sequence appears to be grammatical (more or less), I can hardly ever figure out what he/she/they mean. Dada? Onomatopoetics? I don't know. I still like the music and mostly treat the vocals as another instrument.
I also like music that have vocals in languages I don't understand (Turkish, Greek, Russian, Polish, ...). Frequently the songs sung in the artists native tongues sound more authentic than when they try English (e.g. Ductape). I am not bothered with not being able to understand the words, occasionally wonder whether I enjoy some rather controversial content; think Rammstein, which I understand as a German native speaker.
I may be a bit lyrically tone-deaf as a hard-core scientist. OTOH I like writing, have 5 books with my name on the spine, and countless scientific papers. So I also have to read a lot, However, "literature" leaves me cold, poetry makes me mad. It is language that I find interesting, and language is there to convey meaning. Otherwise, why bother?
I have asked some musicians to explain their lyrics, but that was not well received. How dare I pose such a question? With Punk at least you know exactly what you get.