At first: Your questions and comments are really interesting, even so it is obvious that you are not a deep thinker yet.
Certainly, apex predators in the free nature would never show intentionally respect toward weaker living things. But as species, they do it automatically. That is a bit difficult to understand, especially if you only know spectacular TV- pictures of those animals while hunting and killing.
Since many years I watch the strongest predator on earth, the saltwater crocodile. It took some time to realize that it is not the potentially extreme force of this animal to stay on the end of the food chain for many million years, but the fact that this creature virtually melts into its surroundings. The disturbance it creates to other living things is close to zero. Otherwise it would have vanished very long time ago.
Once you have been through a real thinking-process you will reach the "final question", which is something like "Why is there anything at all" or better: "Why is there not nothing at all". This is the mother of all questions and it is not only impossible to find an answer, but in fact you can get into a real circle because there are several logical "answers" which are mutually exclusive.
So, at one point you will stop trying to find the "answer" / solution to this mystery.
At this point you have to find some kind of orientation or better something tangible from which it is possible to draw realistic conclusions, otherwise you are lost.
So now take a realistic view and you will discover that the history of live and therefore free nature can be the only possible thing available to draw realistic conclusions about what is in the background of existence and therefore what is behind the final question.
I have explained in a logical way that long lasting suffering is impossible in the free nature, the same as durable depriving of freedom for any species or even individuals (Certainly, if you don't read my posts you will not understand that this is based on pure logic). What is to find in the free nature is great and magical beauty and amazing and exciting adventure (for all living things).
So, in the consequence, if you do understand these things, then you will have something like a mold of what is in the background of life and then you automatically understand what has driven this something to start our universe. It is not possible to completely explain this in a short forum discussion but I can assure I am awake and 100% sure about what I am saying.
We are not apex-predator, we actually have left the frame of free nature and since then we had a little chance to reach some kind of higher goal. Trying that without adapting to the rules that have been designed by what is in the background of life, this will lead to automatically self-destruction. For mankind as species, fingering around in the deepest internals of physical life without having found the "spiritual" respect even toward the weakest living things, this is absolutely impossible to survive. The end of our species is very close at hand.
Honestly, I do not even know what the word moralism really means. I am a believer in logic. And the word "spiritual"? My English is poor and maybe it is a bit awkward to use this phrase to explain something that is based on pure logic. Anyway I can assure you that your existence is much deeper as you can see and that there are chances to reach something very interesting. This conclusion is based on pure logic.
It pains me to even read this nonsense. Pure logic my ass. I've insulted myself by taking you seriously.