Hello, AngryAtheist,
Oh, I really wish you’d call yourself happy atheist

! Your name kinda makes me scared of you

. Anyway, You’re entitled to your beliefs (and choice of name) but you’ve made some inaccurate statements about our faith which I’d like to clarify for the sake of those who are reading this thread.
You’re right, they’re not mere ideals, but failure to meet them perfectly does not automatically mean Hell. To be accurate, willfully rejecting the grace offered to you, and hating God are what Catholicism teaches will send you to hell.
For sin, there’s an objective element (God’s law) and subjective element (the state/disposition of the person sinning). For sin to be capable of sending one to hell, the objective element must be serious, and the person must do it completely willfully, and at the same time fully appreciating it’s seriousness and nature- (That it means separating oneself from God, possibly forever aka Hell). This amounts to what I called earlier hating God. Two people could do the same thing, but one could have a serious weakness of passion that very much interferes with unencumbered exercise of free will, and another could easily avoid it but chooses not to. They could also have different levels of knowledge due to many factors. There could be many reasons why people believe or choose certain things. Only God knows who is truly guilty of willfully rejecting the truth and who is not. Only the first group will go to hell.
Actually, for catholicism, it’s because God is the ultimate good and deserves to be loved of his own goodness above every other thing. Loved here means preferred to all other lesser goods. We believe that the will tends to good as much as the intellect tends to truth. Since it’s the will that loves (chooses between goods) it’s the will that sins by loving a lower good more than a higher good, or loving inappropriately by giving undeserved love to what deserves less by virtue of being a lesser good, or less to what deserves more. Our faith says there’s a hierarchy of beings/goods and that humans have a natural intuition of this hierarchy, much as they have a natural ability to know and pursue truth by reason (intellect)
Catholicism teaches that Humans have a natural compass (natural moral law) that tell them the hierarchy of goods, and therefore how to treat them. This is what informs all the moral teachings- That God always takes first place, that other people have as much value as you, that they and we have intrinsic value and should not be reduced to utility by us or others, that people matter more than animals etc.
Actually, for Catholicism, God is good and he’s the author of the goodness/intrinsic value of each thing. Evil means a failure, lack of goodness where it should be, or a disorder. Blindness for humans is a type of ‘physical evil’ (not moral)- something lacking that according to human nature should be there, but not so for bats which are properly that way. Immorality is a failure to act according to the moral law, which is the will of God who has ordered all things and their intrinsic value/goodness.
You’re perfectly right. God is no more bound to our laws than J.R.R Tolkien is bound to the rules of middle-Earth, or Da Vinci was bound to paint a certain way/piece.
If he was, I’d say he would not be God. If there really is a being that is unlimited and the ultimate cause of everything, how could he be bound by anything but his own nature? He has absolute creative freedom- everything exists because he wants it to- Saying he cannot take way or alter existence says he’s not the ultimate being/God- Might as well believe like the atheists. I think for a theist, it’s more reasonable to believe as we do, that if God exists (he does) he is infinite intelligence in absolute freedom.
I think you’re right. But if you read the saints, and psychologists have also discovered this, we humans actually do many things for purely selfish reasons but we don’t realize it because the rewards we strive for and the punishments we fear are emotional/psychological.
So, in reality we really are just like the sociopaths!- The difference is that the sociopath does not have the incentives for doing good (good feelings and psychological satisfaction), or avoiding evil (guilt, shame and other psychological “punishments”) that the rest of us do. So he pursues his selfish desires in the external world unencumbered by them. You may think you act out of goodness, but mostly it’s to get the psychological carrots and avoid the punishments. True goodness is to pursue good for it’s own sake, not out of utility, even when there’s zero psychological benefit, or great cost to it- That’s the point of the phenomena of the “dark night” when all the sensible/emotional/psychological goodies are removed so that one must pursue goodness unselfishly.
Peace!