Popa, I completely agree with you.
Romantic songs that aren’t vulgar are not rare at all, in fact wherever you live I’m sure there is a radio station that is dedicated to such music. Moreover, unlike Popa, I can say with confidence that I am pretty well-rounded when it comes to music, and I think that to say that most romantic songs are about “lust” is absurd.
To say that “the non Jewish concept of love and the Jewish one are polar opposites” is to me a statement made in ignorance, and Popa is right that Chazal are full of statements that have romantic connotations. And sure, Shir Hashirim is a mashal, but would Shlomo Hamelech use something that was treif and utterly false as a mashal? Come on.
I don’t consider romantic songs to be treif.