They have a worldview that is so different it is effectively an alternate reality. This mostly comes from seeing different information streams or being in different social circles.
It seems objective that many civilians have been killed and a lot of land stolen.
But my point is that things that seem objective to one group of people might be objectively false to another group.
Which isn't to say that there is no real truth. Just that the premises people hold are so different that the worlds are not compatible.