I just had a realization based on your comment; Their boots are dirty because they are walking through a world of shit. That is a core tenant of Christianity. They get to cop out on trying to make anything better by just saying "oh well, the world is shitty, get believers to make god daddy happy and then die." That lines up with Trump's thematic message of America being some over run, crime infested wasteland. It is the hook by which Trump catches the Christians.

August 6th 1945: a small forgotten shrine in Hiroshima gets obliterated by the nuclear blast of Little Boy. This was one of the seven shrines holding the fabrics of spacetime together. Slowly spacetime starts to unravel, in the beginning nothing seems unusual but slowly the timeline becomes more and more unlikely. Can our hero stop the unraveling in time?