Trust dies whenever participants lack full information, regardless of religion’s form.

Evidence

What is clear is that whatever religion the society embraces — even if it consists simply in believing in the virtues of that society — it must be comprehensible to all those who participate in it; and it must be available for participation. Lack of information destroys trust. — Diego Gambetta, Trust - Making and Breaking Cooperative…, 1805

Categorization

• XREF: This causal claim — information deprivation destroys trust — is the exact mechanism the reader wants to test against Saramago’s blind society, where sight loss removes information about others.