Its all about unity and self-respect.
When Rosa Parks refused to give up her buss seat, she was hailed not as a national hero but an internantional one by African Americans.
However, if the same thing happens to a Pakistani, fellow Pakistanis would avert any conctacts with that person, so to remain worry free.
Those African Americans got conscious of attaining a descent identity after WW1, which v muslims are still missing.
Go use the word Paki, but remmember this won't give your own generations an identity and respect, that your people are struggling for, especially when you are called terrorists all over.