Someone disagreeing with your interpretation of the Constitution does not make them weak minded nor does it make your truth anymore the truth than theirs. We've learned throughout the country's history that one man's truth is another man's misinterpretation. Supreme Court Justices' Constitutional exegesis throughout its conception are a prime example. The 21st Amendment alone indicates a reversal of an interpretation. Your rendering does not make it a correct reading.
Many learned people see the "Establishment" cause as simply that: the country may not ESTABLISH a religion, i.e., the Church of America, and require people to attend. The language of the Constitution itself is not that esoteric. Some have only chosen to make it so.