My original statement was the common denominator among the things everyone agrees on is that they have objectively observable, and empirically measurable qualities.
You subscribe to one particular philosophy of mathematics, while other people subscribe to another. There is disagreement on which is best. Mathematics does not have objectivelhy observable and empirically measurable qualities. This is consistent with my original assertion.
There was no reference to, or implication of the "trustworhtyness" of mathematics.
Why am I getting dragged off on this tangent?
It's not a "tangent." It's the basic question: Where can I put my foot down on solid ground?