<https://hinduism.stackexchange.com/a/19101/19211> This answer says that Shudras should serve other orders as menial by "massaging" and obeying their "wishes".

Another section of Mahabharata says
The Creator intended the Sudra to become the servant of the other three orders. For this, the service of the three other classes is the duty of Sudra. A Sudra should never amass wealth, lest, by his wealth, he makes the members of the three superior classes obedient to him. By this he would incur sin. Torn clothes which are no longer fit for wear, should be given away by the regenerate classes unto the Sudra.A Sudra cannot have any wealth that is his own. Whatever he possesses belongs lawfully to his master (<https://en.krishnakosh.org/krishna/Mahabharata_Santi_Parva_Chapter_60:2>)

So as per Mahabharata Shudras were created as servants of 3 Varnas and can't earn wealth, cant learn Vedas and only become "Menial Workers" of Brahmanas? And they are to be given poor torn clothes which everyone discards ? So isn't this violation of basic human ethics?