How Colonization has affected our notion of Muslim Unity

Secularism/Liberalism has always pressed ‘individualism’ but being this goes against the communitarian instinct Muslims think that Muslims ought to unite but never spell out in what way? Are Muslims to unite where there remains no more mutual disagreement? Should we gather together more often? Should we unite to speak out against injustice? And if any, or, all of the above is even possible, what would this even avail us? The secular/colonized mind has tricked us to act/coalesce in a vacuum. It is not some hand holding coalition we need. It is Political Unity we require.