You're wrong in thinking that just because a community is a minority they must be subject to persecution there. That's not necessarily true. If that was the case then Muslim population in India wouldn't have gone up from 9% to 14%. Also Hindus are a majority in India but still Hindus of Indian Kashmir were ethnically cleansed.

Also why should the treatment of Hindu minorities in Pakistan and Bangladesh shouldn't be up for discussion? All of these are part of the same historical narrative. Just because Muslims created a separate country and expelled most Hindus from there doesn't mean we should stop talking about it.