Faith does not require abandonment of common sense, nor does it justify behaving in ways that are obviously and clearly, by any sane standard, just plain wrong. This is the problem with reductio ad absurdum arguments; the arguments are themselves absurd.
Thanks for the example.
But you are not quite accurate here. Faith used to justify irrational beliefs DOES abandon common sense. Faith used to justify antisocial, or dangerous, or deceptive, or criminal behaviors can't be said to fall into any "sane" standard. These are by definition contrary to social standards of behavior. Look at Kenneth Copeland, or the Bakers, or priests who abuse children, or ISIS, or any theist who lies to an audience to swindle them out of money, etc.
Now your comment may be related to those who have rather mundane faith, like faith in Tim's ability to stop using drugs. But since that use is my position, and yours has been religious faith, it's not relevant to your usage of faith.
Abstractions are not by definition impractical. Mathematicians and physicists use them all the time.
Indeed. Abstractions can represent real things or imaginary. Again my point is how theists will manipulate words, language, meanings, etc. to built a false representation, often by comparing religious abstractions to other types that can be demonstrated as true. The tactic is a sort of 'truth via association'. If math is abstract and can represent truth, then abstractions about a god must represent truth as well. This trick is easily seen, and to my mind is a confession that theists can't show their own work.
Yes, many religious people lack compassion. I wonder sometimes, do they even read their sacred texts? But I think we have already drawn the distinction between religion and spirituality.
Many surely don't read their texts, or only read the ones that mirror their own attitudes. But we cannot put too much responsibility on the individual believer because they often adopt an ideology which is based on interpretations of texts already, so the self will bust follow the crowd and adopt that interpretation. For an individual to have a fuller range of responsibility they need to educate themselves and learn to think independently. The dilemma is that religion is typically a unifying phenomenon, and members conform to the norms that are deemed true through the authority of God. For the individual to look passed this framework they have to assume an authority greater than the God.
And that isn't what they are taught to do, hence the trap of religion.