I've a question about reservations, why's there no creamy layer for sc/st

Look I'm neither against nor support anybody, i equally hate everybody, so please don't hate me, by posting this i just wanna broaden my understanding about it,

If one generation gets the benefits of reservation, why do their kids claim it, let's take an example of Tina Dabi, why does she need reservation, why isn't their a creamy layer in sc/st reservation, those who oppose the idea of creamy layer, can you elaborate it (please be kind i seriously don't hate anybody i just wanna understand this)

If you're saying past me discrimination hua hai upliftment chahiye and all, bhai 1 generation 2 generation ko de do uske baad kyu dena hai, aur creamy layer add hone se fayda sc/st ka bhi hoga na,

Let's take an example of 3 people a, b, c giving some competitive exam jiski cutoff UR KI 150 hai, SC/ST ki 120 hai A is from UR category he gets 149 marks misses the cutoff by 1 mark B from sc category and someone who really needs the reservation (poor financial background) let's say he doesn't have resources he works his ass off and gets 119.99 marks, misses the cutoff by .01 mark, C is from sc/st category, but he has a rich background. His parents got the benefit of reservation, he got all the resources but let's say he's lazy and doesn't work hard (for God's sake I'm not saying sc/st are lazy, I'm just giving an example, wtf I'm so afraid that I'll get the hate😭😭) so bcz C has all the resources he gets 137 marks, doesn't clear UR CUTOFF but clears his category cutoff, toh C ko reservation ki jaroorat nahi hai na, C ne ek tarah se B ki seat hi li hai (B jaise kisi ki) agar creamy layer hoti toh toh B ka selection ho jata jisne resources and string financial background nahi hote huye bhi itna acha score kiya,

Look I've no intention to argue or fight with anybody i just wanna understand what are the arguments against the concept of creamy layer in sc st category, abd i just wanna know if i said anything stupid.

If your point is ki itna discrimination hua past me and all, bhai just think of an ias or a doctor or an inspector of income tax or a iit graduate who's making 40lpa or a state pcs guy, Bhai itni achi post ke baad tumhari kitni generation ka upliftment ho jayega toh inko bachccho ko reservation kyu mile

I'm just talking about the reservation in jobs, not about the political or social reservation, and my question is clear from the post, WHY ON EARTH DOES TEENA DABI NEED RESERVATION, not targeting any particular person but WHY NOT CREAMY LAYER

P.S. (I'm sorry for my English skills I'm sorry if I'm hurting anybody's sentiments i just wanna understand this and the reason why I'm apologizing so much is bcz of I'm scared of getting the unnecessary hate)