How is advocating that someone be consistent not advocating consistency?
In response to your second argument, the stated example is very similar to proselytizing in that you’re attempting to bring your friend around to a way of thinking that you consider to be true and correct. Presumably because you also believe that it will improve their life. So if the end goal is to help them become a more emotionally stable person, then does it matter if they get there with rational or Christian teachings?
If the, presumed, end goal of this is to help your friend live a happier life then what is the effective difference between::
“Logically, there is no reason for me to be angry that I can not find my comb. This isn’t a big deal.”
As opposed to:
“The comb is a just a temporary material object whereas I am an immortal spiritual being. Why get angry over it?”
Good point, I should not have assumed that repeatedly admonishing someone toward the same line of thinking through arguments based on rationality would be consistent or logical.