Democrats having a good chance is not the issue. The issue is what chance Black people here have, whether the POTUS is a Democrat or Republican. None of the statistics for state sponsored racist violence, extrajudicial killings of Black people (men, women, children) changed even a smidgen under Obama.
Sophia, I completely sympathise with your despair at the increasingly fascist, hinduist, misogynistic and casteist direction that Modi's India is taking. But don't forget that what drives American domestic politics is racism.
In India, would you be satisfied for Dalit rights if the Congress party were to "hold a good chance"? Find allies for Dalit rights, find commonalities and raise mutual awareness with the Movement 4 Black Lives.