Capitalism

A Master Race is destined to lose power because of its OWN degeneration - not 'blaming' anyone else here.
The castes beneath it [whether slave, peasant, merchant or priest] contain elements who are constantly trying - by hook or by crook - to over-throw the Master Caste.
Now those elements could never succeed when the Masters are at their most potent and cruel. However, because the necessity of nature dictates that all living things must eventually fall into decay - especially when they relax their grip - then the Master Race is DESTINED fall [and therefore also rise again].
Then the slaves may rise up with the aid of priests or with the aid of merchants [or both], since they all have the same goal to see the end of Warrior Power.

So this cycle of birth, life, death etc., grinds on eternally - there is nothing that can be done about that, and there is no 'blame' there!

Likewise, castes/classes are ALWAYS existent in every society - show me one where they are not!
Capitalism does NOT create more castes than any other society [see agrarian India for the most varied array of castes].
No blame there!

As for 'competition' - this is ALSO endemic to ALL existence!
What could be more competitative than a warrior society - check out Sparta!

In actual fact, Capiatalism tries to LIMIT competition by use of monoploy, trade tariffs, take-overs etc.,

No, it does not wash to pretend that Capitalism is 'Nietzschean' - Nietzsche had nothing but contempt for the merchant class - particularly for the "Stock-Exchange Jew" which he called the most disgusting creature on earth!

So where's the 'blame'!?!

Change, struggle, transformation, revaluation, hierachy and competion are all Necessary!