I believe the reason why it is difficult for many individuals to accept is how we programmed to think. We are pattern thinkers so in order to make the world we see make sense we created a system of language to define it. Religion was a big contributor for most of history and now we have science with a more advanced system of language to define it. We evolve at a very slow rate so its going to take a very long time for this new system to get firmly rooted in future generations.

If there is nothing to substantiate your assertions it is just pure speculation.

The assertions are logical, and make sense.

I'm going downstairs now, my grandmother will be sat on the chair next to the entrance in the living room; she does every night.

Evolution doesn't "care" whether "its subjects" believe in the truth or not. If knowing the truth helps them reproduce they will evolve towards knowing the truth, but if believing a lie helps them reproduce, they tend to evolve toward believing a lie. And example where the latter is the case is people's opinion of their own sexual prowess.