How Can a Common Fact

How can a common fact
Bring two different brands of ideology?
Trying to prevent the fact from manifesting
Brings the very fact repeated
Over and over again.
It must be because no one can
Learn the truth
But must relearn it
Over and over again
Until one day the truth stops getting learned.
And on that day
A trumpet will sound in the sky
And there will no longer be a mankind
Of which to understand.