The difference between US and India in above context, US has much better border entry/exit control than India. Even if we take Mexican immigration into context - India has a much worse problem with BD and Rohingya.this is why, one should not watch movies from interval and then write a review about it.
for almost 10-15 years before 2014, regional (dis)connectivity in sooth asia was such a big topic in strategic and IR circles, efforts to solve this problem in earnest started after 2014 with railways, waterways, , power grid and port connectivity.
to cultivate influence, a country needs atleast trade connectivity.
there was even talk of sooth asia as one economic union like EU, at one point in time. ofcourse powers that be also worked against this becoming a reality.
U.S can have trade connectivity with canada and mexico.
china can have trade connectivity with russia and vietnam.
but obviously India trying to establishing trade connectivity with BD is baniyagiri.
Trade with Pakistan with all I care.. but with long term Indian interests and Indian safety in mind.