I hear you. Denialism is incredibly stubborn. I just spent the past days having a rather civilized discussion with someone denying the significant role of anthropogenic CO2 emissions in the climate change discussion. Even if I acknowledged his arguments and presented scientific-based counterarguments disproving his standpoint, he continued to ignore my reasoning and stayed with his viewpoints.
His behaviour towards science is one of the reasons why I recently wrote Climate Change Makeover: Expanding Our Conscious Horizons.