If evolutionists keep saying the sky is falling if you teach that evolution can be doubted and, 'while seeing the evolutionist's way of looking at things, have a look at this, too...'--if they keep saying this will ruin the country, they will quickly lose credibility...
No, it means that the association between conservatives and republicans on the one hand with the anti-science-God-explains everything crowd will cause a loss of politcal stature. If you really believe that there is no need for scientific inquiry (which is the position of ID) and you're a conservative, you'll be a political liability for conservativism.