"Is there some Constitutional Amendment that denies the right of believers to participate in the political process?"
No, however, if my "pursuit of happiness" is different than yours, you shouldn't be forcing me to pursue happiness in the same way you do. That IS against the constitution.
Drinking wine vs. smoking pot.
"if my "pursuit of happiness" is different than yours, you shouldn't be forcing me to pursue happiness in the same way you do. "
So you are against minimum wage laws, discrimation laws and drunk driving laws, correct?
"That IS against the constitution."
Where are the above forbidden in the constitution?
"Drinking wine vs. smoking pot."
Strangling cats vs. riding in a rodeo.