IMO, there are differences in the animosity felt by the common Dalits living in villages and that felt by the educated Dalits.
The common Dalits living in villages experience untold humiliations and downright violence on an almost daily basis. Here is a
Hindu article about one such instance. Such incidences are reported with sickening regularity. The ire of these unfortunate folks are primarily directed at the dominant caste of the the village. This gives a tactical advantage to caste Brahmins and they seize it with glee. They are quick to point out no brahmins are involved, brahmins abhor violence, and other homilies, and absolve themselves of any blame.
The educated Dalits, who is more likely to live in a city and less likely to experience direct discrimination unless he/she visits their village, look at the degradation heaped upon their folks, and their forefathers and foremothers from as far back as the dawn of "civilization", and they seethe in justifiable anger -- who wouldn't? When they try to understand the antecedents of this wretched state, they come face to face with Brahmnism and all its grand dharmashshthras. Then, they rightly hold the caste Brahmins responsible for each and every incidence of discrimination against Dalits anywhere. To them, it is the Brahmins who unleashed this rabid monster and that is not an unreasonable view to hold.
Pardon my mixed metaphor, this dirty oil from the well of Brahminism has been gushing for centuries causing havoc. The caste Hindus did not cause the leak, they are just making a killing out of it. It is the Brahmins who are responsible for this catastrophe and they have to seal it off, but they are not lifting a finger, no they are lifting a finger only to point it at the caste Hindus.
Cheers!