Read my post again. I didn't say these were Muslim-majority lands, but that the British (or other colonials) gave Muslim-majority lands to these kingdoms: Arakan province, southern Thailand, Southern Philippines were all Muslim-majority, but they were made part of non-Muslim countries by the colonialists.
Depends on your viewpoint doesnt it.
Those regions which are Muslim majority always belonged to those countries(I use the term loosely). Just because the people were of different faith does not mean that you give them a different country.
Question 1:
If that were the case, then why stop at faith? Why not sects within a faith?
There are umpteen cases to be made in all of the Muslim countries where there is a district within a country which has a different religious or sectarian population. If the British should have stripped those districts and formed them into countries then would the Muslim world not have cried out loud?
Question 2:
On the other hand, do you know that Rakhine and some others are
not Muslim majority? They have a
sizeable Muslim population as a percentage of population, but it does not exceed 50%.
So what happens in this case? Where say the Muslim population is 40%. Should the region be removed from the country to formed into a separate one?
The British gave India, the country, its existence. Before that time, India was a civilizational entity, like Europe, not a political entity (except for very brief periods).
Civilizational entities ?
India had been united in form or the other - from the Mauryans, the Mughals, the Guptas even apart from the British.
There is a reason why when the Marathas were rising, they were supported by many Hindus, or when the Sikhs were rising?
There is a civilizational continuity in India.
The British when they were about to leave, tried as hard as possible to keep India fragmented. The Indian independence leaders limited the damage using a whole lot of methods - some honourable, some dishonourable to keep the number of countries to two(initially).
Had it not been for those Indian leaders, India would today have been a dozen countries minimum.