Please read G.E. Anscombe’s “Modern Moral Philosophy”. She is the most brilliant Catholic ethicist of the past 100 years, in my opinion.
www.pitt.edu/~mthompso/readings/mmp.pdf
Anscombe’s article can be a difficult read without familiarity with or clarity regarding the issues in philosophy to which she refers or to the works of philosophers to whom she briefly alludes.
Perhaps a good way of making sense of her overall point is to see it in terms of a ‘situation.’
I have a cat. The cat lives in my home with me. Our lives are lived “in relation” to each other.
Anscombe’s point, I suggest, is that there can be no sense of “moral” or “obligatory” simpliciter with reference to my treatment of my cat without reference to the “whatness” of the cat and, by implication, what the cat requires to flourish as a cat.
In this sense, it is imperative that I allow the cat to be a cat and not attempt to turn it into, say, a watch dog or houseplant. Live and let live works when clarity exists with regard to what it means for a cat to “live.”
However, allowing the cat to be a cat, assumes that I have a logically consistent and somewhat accurate conception of what a “cat” is.
If the cat were to begin committing acts of grave depravity such as plotting to assassinate me, chewing on the faces of guests or using my sock drawer as a litter box, I would be within my “rights” to terminate my relationship, or, at the very least, intervene regarding the cat’s behaviour by infringing on the “live and let live” basic agreement we formerly enjoyed.
Notice, (inocente,) that “live and let live” does not define what I expect (or what I must tolerate) from the cat, but, rather, that a prior conception of what it means to be a “cat” guides when I have a right to intervene and not allow the cat to “live” in any un-catlike way it chooses. In other words, it is not this particular and peculiar cat’s choices of behaviour that define what I will allow as “let live,” but rather it is what “cats” (as a definable breed) require to flourish as cats. That is where the line is drawn.
It is not sufficient to point out that, “Yes, some cats (3-4% of them) can resort ‘naturally’ to face chewing behaviour.” Or, a small segment of cats will be indiscriminate with regards to their placement of litter. What “some cats” are prone to do is not sufficient warrant for tolerating peculiar behaviour, nor is it sufficient that some cats exhibit a behaviour that will justify the inclusion of that behaviour in the definition of what it means for a cat to ‘flourish.’ The claim that ‘this cat’ needs to defecate indiscriminately or tear faces off of humans in order to flourish in its own peculiar manner just because it is ‘that kind’ of cat does not have anything like cogency with regard to whether I ought to tolerate that behaviour and resign myself to it.
Likewise, given that we have a share in the human community, it is not sufficient to conclude that “live and let live” means we must tolerate any and every peculiar notion that human beings come up with. The mere fact that 3-4% of a population has a proclivity towards some behaviour is not a sufficient reason for that behaviour to be tolerated, let alone sanctioned as part of what it means to “be human.”
The point being, that, just like in the cat examples above, it is necessary to show that those human proclivities are an indelible aspect of human flourishing or, at least, do not conflict with it. This demonstration is required BEFORE the acceptance of those behaviours as “what it means to be human” and before they are conditionally included under the “live and let live” umbrella of what counts as tolerable human behaviour.
It is not sufficient to claim some (3-4%) of humans engage in peculiar behaviours, therefore, these behaviours are simply, and without question, a definable aspect of what it means to be human and, therefore, we must “live and let live” regarding all human tendencies and proclivities.