Songwriters have a right to hope that people will respect the meaning in their songs. But I have a word of advice, which is this.
If you want to see your song still around in 50 years time, or even remembered, you'll have to get used to the idea that someone will use the words for their own expression. What is being commented on above is, I suspect, the first part of the folk process. That is some of the meaning being lost, so that the song can have the possibility of being used later. Often this gets to the stage of being almost totally nonsense before others come around and make a different sense of it.
If you don't believe what I say, just look at some originals from (e.g.) broadsides and what the folk process has made of them. The personality of the writer is lost, but this doesn't make them worse. If they survive at all, they're usually better.