No. This is Varna-Vyavastha. A system to describe the articulation of action.
It takes generations of people and their conscious effort, articulation, and precise action to achieve mastery in a particular activity. The Brahmin way is that way of generational conscious application and crafting where the process is refined to take it towards perfection. Not all participants on the Brahmin way may stand out. But occasionally, a Brahmin is created through whom you can say, yes, now I understand the value of why these people live the way they do for generations. The Brahmin way is not about ancestral bloodlines or identity pride. It is about creating a phenomenal process through multi-generational application.
The Kshatriya way also requires conscious effort for more than one lifetime to manifest a form ready to perform its duty under any circumstance. The Kshatriya way need not require the generational intensiveness of the Brahmin way but it cannot do without generational discipline. If it does embrace the intensiveness of the Brahmin way, it may become de-facto, a Brahmin way.
The Vaishya people are those who perform action to realize social and material change. The preparation they require for their action need not be generational. It can be learnt and performed by that person in their lifetime. The scope of their preparation towards action is limited when compared to a Kshatriya or a Brahmin.
For the Shudra way, the skills for their action can be readily learnt. All people must pass through this way on their journey. No exceptions.
CRAFT YOUR ACTIONS
So, is Brahmin high class and Shudra low class? No. An action consciously crafted and perfected over generations will inevitably be rare and more valued by a civilizational society. Yet, the value of any action remains on the purpose of its application and its impact on human well-being.
Therefore, prepare well and craft your actions.