The real caste in the USA is the poverty line and exploitation inherent to capitalism
that's a class issue .
This is one way places like India, where caste is a prominent social component, have something of an advantage.
India's oppressed castes will disagree. Oppressor uppercastes not only have no problems inflicting barbaric violence on the oppressed castes , they also face minimal to no negative consequences for their crimes.
Here's a recent days old example where a 20-year old Dalit youth and the three young children with him were beaten up, urinated on, and hung upside down. The perps, all oppressor upper caste men, recorded the atrocities they were commiting and circulated its video which should tell you how sure the oppressor castes are of their crimes being taken lightly. The police only filed a report against them after the video they made went viral. They make and circulate such videos as caste pride and to humiliate and terrorie the oppresed castes even more.
Oppressor castes too have their sociapolitical spheres who act vocally &sometimes silently to ensure caste oppession foes unpunished. Oppressor castes are wealthier, have greater political representation, and almost all in positions of power are fromthe oppressor upper castes. which is why even after 77 years of Independence, caste atrocities are rampant in India.
This may seem odd to someone accustomed to a caste dominated system, but here in the USA, this will likely only really apply to a situation where the plaintiff and defendant are both from a culture where caste is an established legal issue.
Caste discrimination is a problem in every place where oppressor upper castes come across those who they think should be oppressed, both inside India and outside. It is a global problem, but not discussed much because most of the diaspora Indians who are vocal and visible are also mostly from the oppressor upper castes.