Yeh, I don't think that is it.
Pakistan big problem is rampant corruption, constant military coups, and near failed state status, not its religion. There have been some semi stable periods where the west has had fairly strong links to Pakistan. Much to the annoyance of India.
India is an obvious counter balance to China.
But I am pretty sure plenty in the west know that India is a complex geopolitical animal and brings their own issues and concerns with them. But that is also counterbalanced by their own internal issues and situations.
I also think people are overstating the power of the G7, which is one of the most irrelevant entities to have ever existed. The rise and fall of nations geopolitically can often be attributed to how badly the US needs or has interest in them and there importance globally. Its not like the Italian prime minister announces at the G7 conference "India! We can counter balance China with India" and all the other heads of state nod knowingly and then a charter is announced that India is the new hot thing. G7 should probably evaporate, G20 is more relevant.
India has their own thing going on, and has never sought to have a particularly close relationship with the Americans. India is non-aligned and famously so with very active relationship with Russia. India's presence in the Quad doesn't perhaps unwind that, but probably represents a portion of Russia, who has their own concerns about China.
Places like Nepal are classic examples of how little traditional "global powers" like the US and Russia play in some areas. They are almost non-existent in Nepal, like barely in the top 10 players in that space which is dominated by China, India, Pakistan, the far further down, Arab states, South East Asian states, western countries (combined).
BRICS isn't a thing IMO. It weilds no significant power as an entity. There isn't a whole lot that unifies them. On any issue you are likely to get 5 different answers. But shows a nice scale of developing states along some sort of continuum of functioning state to failed state.
South Africa? As a balance against western dominance? I will strap myself down for that one.
Its more absurd than saying MITKA is going to be the next global power and challenge western dominance? At least its a bunch of like minded, functional middle powers that can get along with each other.