1)
対立 between 国 and 住民
2)
~とは・・・のこと(だ) is a structure for difinition.
で is from copula.
3)
Yes, that's just a typo.
4)
~という(も)のは is used for expressing general idea/nature of something.
e.g.
猫というものは気まぐれなものだ。
5)
You are correct. It should be が.
は has a nuance that another factor other than indictment might lead to his deportation or this indictment might lead to another affair other than his deportation, so, in these context, は is also correct.