Why other religions are not protesting against reservations and UGC.

Recently, I saw a video where some reservation supporters were saying, why are only savarna getting affected by reservations? Why are Parsi, Sikh, Christians not protesting against it?

Although it was a move to malign the movement, I genuinely wanted to know why it is the case? Why are Parsis, Sikhs and Muslims of GC silent? Or are they blown away by the leftist propaganda?