It's too much effort to change. Once people decide on something, they usually just keep doing it.

There's comfort to be had in adhering to a particular fantasy that you've embraced over time. When you challenge that, even if you're right, you're asking (or maybe demanding) that they give up that refuge of comfort and if you offer nothing to replace it, you're then telling them that, not only can they not have that thing that brought them comfort, but you're also going to make them feel vulnerable and exposed.

AnticitizenX does a good job of answering that question. I would recommend watching his entire series.

This example is perhaps the most to the point:

Here is a another sample

people don't like being wrong even if they are

Politics, religion, reality, romance, They all seem to fall into the receipt of deceit category.

Well, I am not sure but perhaps I do the same as I grew up with no religion and continue as I grew up. However, my sister converted to Catholicism 5 years ago. She is well versed in Catholic philosophy, a member of the Catholic Workers Party basically a follower of Dorothy Day. I believe there is some liberation theology in there as well. She discuss St.Augistine and various other philosophers of the faith and seems to be thriving.