It's almost like a colonial power intentionally divided the region so they'll be focused on infighting instead of competing with said colonial power

More British accountability finally. First this, next the kohinoor diamond!

Plenty of Benin Bronzes to return too.
- Oh yes! I mean just empty out the British Museum

What, they were one big peaceful team until the British? Need a little background here

https://en.wikipedia.org/wiki/British_Raj
- Scanned that, and it appears that the Muslim and Hindu peoples were fighting
  As independence approached, the violence between Hindus and Muslims in the provinces of Punjab and Bengal continued unabated.
  There's a statement earlier that the fighting was instigated by the British, but it lacks citation.
  The Congress was secular and strongly opposed to having any religious state.[96] It insisted there was a natural unity to India, and repeatedly blamed the British for "divide and rule" tactics based on prompting Muslims to think of themselves as alien from Hindus.[citation needed]

This is rather naive. Do you think the fighting wouldn't have happened if they were kept as one big country?

This is rather a colonial narrative. Do you think the fighting would've lasted as long if the British never colonized that area?
- If the British had never come, I expect the situation would be very different. But I thought we were talking about partition.

Britain

Never attribute malice to that which can be easily explained by incompetence

No Britian very much partitioned things in a way to minimize local power. I don't know about Pakistan in particular but the province of west bengal and Bangladesh were intentionally split up to weaken what was a strong nationalistic group.