You are missing the point completely. Humans are divided by their nature, not by things like religion.
It's not a "ploy" to point this out, the fact remains the environment is very political and therefore not something humans are good at uniting round.
And some platitude like "reducing income inequality" is about as much use as saying "diversity equity and inclusion" is a potentially unifying topic. You don't seem to think "woke" DEI culture has unified us very well though, do you? Why do you think that is? Surely no one can object to something as noble as DEI?
There is no point in engaging in magical thinking about humans uniting around some vague platitude when any method for achieving this goal would be intensely political and divisive. This is because it involves diverse groups of humans who cannot help but see the world through contrasting lenses based on differing interests and group identities.
This is especially true when ones political identity is increasingly becoming the highest marker of identity for many.