Sorry but I disagree, ethics are inherent to life itself
i think we do agree except on the definition of what ethics is (semantics again). empathy, collaboration, respect, etc are indeed inherent in nature but that's not an ethical framework. ethics is the search and definition of a rational framework of what good behavior should be. that's definitely a human construct and other animals don't have that, or nowhere near that sophisticated. they have natural hierarchies and rules, they can have theory of mind, but their behavior emerged organically and they don't really argue about ethics, how behavior should be. as an aside, animals can be ruthless and cruel too. just watch a flock of peaceful and lovely hens (specially without a rooster) bullying a particular hen they do not like for whatever reason, possibly to death. it's really brutal behavior, gutwrenching to watch.
furthemore, even if ethics aims to define what good behavior should be the result is not guaranteed at all to be what you and i would consider a good thing. that entirely depends on the particular beliefs and values shared by the group. take the proverbial nazi as an extreme example. they didn't lack ethics, on the contrary, they developed their ethics to the extreme except they based it on values and beliefs you and me would find abhorrent, and wrong. to them however that was perfectly normal and acceptable, thus ethical. there are many such examples, also in our time and day and also very extreme. ethics aren't "good" per-se, they are always based on a subjective perception of the world, on a value and bielief system. from your comments i think you and i could share quite a few of those values (e.g. cicero), but in reality there is no universal "good" ethics. the best we can do is find common ground.
finding common ground, however, requires the hardest thing to understand about ethics (and human co-living in general): that "my ethics" aren't necessarily "your ethics". it requires the recognition of differences and the will to at least understand them and to make them be understood, in what values they are rooted, from what beliefs they spring from, if those values and beliefs actually make sense. ofc there will always be limits but openess, tolerance and engagement are the only way to make that work with time. what you can't do is go out from the premise that your ethics, values and beliefs are the absolute truth. for one they absolutely are not, that's guaranteed, because absolute truth simply doesn't exist. but then, you can't simply impose your values on others, that only works with coercion or violence, that's what the nazi tried.
These upper class people are addicted to power and they are pathologically selfish, they will continue to hoard capital until our economy collapses once again
yes, and that means their own demise to some extent, although they do have a big collection of golden parachutes. will see how that works. but interestingly, the fear of losing their privilege and dominion is possibly what is making them double down (particularly in the west now) on their own ethics, which is in clear contradiction with that of the majority of the population, and it's really bursting at the seems already with cognitive dissonance. i still wouldn't say they aren't ethical, that's just a step away from saying they aren't human.