(i)
The words 'former' and 'latter' refer to two different things.
Here, we're taking supporters and critics.
- 'former' refers to the first group/thing
- 'latter' refers to the second/last group/thing
So in this case, 'former' is referred to the supporters, and 'latter' is referred to the critics.
(ii) The man gave us a choice between music and sports, I chose the former, while she chose the latter.
Hope it helps. :)