Sorry, AHunter3, but deconstructivism is not equivalent to semiotics. While deconstructivism indeed seems to derive from semiotics, the converse is not the case. See for example the debate between Umberto Eco and among others Richard Rorty in Interpretation and Overinterpretation (Cambridge University Press, 1992), where Eco specifically defends the position that the text puts certain limits on the available interpretations. Whatever the worth of deconstructivism, you can't use it as an argument against semiotics.
I don't like deconstructivism much more than you seem to do, and I don't believe there is much to be gained from studying semiotics (as I posted), but I felt I had to set things straight.