Is it 'conservatism' which holds on to the Oregon anti-Catholic provision in our State?   I find both political parties to have zealots regarding their secular ideologies.  

I believe that  the zealotry has been growing at both ends of the spectrum as well.  This election, like the last couple, is likely to accentuate the divisiveness from and hatred of 'those others' who are out of lockstep with the Democrats or the Republicans on their respective fringes.  

Those zealots post here daily.  The truly vehement on each end of the spectrum are found at OLive, Breitbart, etc.  

As an agnostic, I acknowledge faith but have no use for religion, doctrine or theology. 

I believe all three of those are primarily tools invented to give 'religious' individuals secular power over others, whether of their 'faith' or not.   

A pre-historic shaman is just as 'holy' as the Pope, an Iranian Ayatollah, the Metropole of the Greek Orthodox church or any other religious leader; no more, no less.