Gens has spoken.
Most people just sing lyrics because they like the song, and want to follow it - it's merely like humming. Many artists don't care about the message they contain anyway! Some examples would be Beck, Red Hot Chili Peppers, The Strokes, Gorillaz and many more. The artists just sing them to follow the melody, to use their voice and to give something to follow the song - one gets attached to the lyrics not because of its meaning, but because of the harmony they form along with the rest of the instruments.
I'm not saying that the meaning should be completely ignored, just saying that your focus shouldn't be solely on that. Some songs have meaningful, beautiful lyrics, but the meaning of those come from the writer or the artist, and you should recieve them; they shouldn't come from you! It gets extra retarded when you modify the lyrics to fit whatever your message is, without any knowledge of musical theory! If you have some message you wish to share, write your own song, letter or book - all the other forms of art have some way to express yourself, choose the one that suits you best!
I think that's enough of my rant.