Edit: No, sorry, I'm referring to the results section of the study where they talk about the fact that this is a small slice of a broader picture where toxoplasmosis -> stress -> political views. Because that seems like it's the "point" of this study. You have a mild chronic condition that affects a lot of people pretty much uniformly and adds stress. So if you see a difference in infected/not-infected then you have a strong case that more stress -> more conservative.
> It was suggested by that these associations might be the results of a mild chronic stress caused by the toxoplasmosis infection instead of the result of the toxoplasmosis itself. The presence of a chronic stress not only explain the presence of behavioral and political differences with the non-infected control group, but also the presence of sex differences in these behavior and ideologies as different responses to chronic stress in the two sexes, involving differences in the immune system response and in the coping strategies used
> previous studies showed that infected subjects scored lower in novelty seeking, a factor that contributes to a conservative and political opinion
