So Wikidata can handle conflicting information by collecting all of it, but clearly separating the different viewpoints in a kind of "split brain". That works so long as the different sides can agree that their opponent's views are what they state they are.
In an Abstract Wikipedia article, that means that all viewpoints with a sufficiently large userbase might end up represented equally in all language versions, but they'll still be clearly distinguished as such, so the reader can apply their own value judgments to support their own side's viewpoint over that of their enemies.
The entity representing Kashmir https://www.wikidata.org/wiki/Q43100 has three statements each for "country" and "territory claimed by", reflecting the claims by China, India and Pakistan. There are separate entities for Taiwan (the Republic of China) https://www.wikidata.org/wiki/Q865 , Taiwan (the island) https://www.wikidata.org/wiki/Q22502 , Taiwan (the province of the Republic of China) https://www.wikidata.org/wiki/Q32081 and Taiwan (the province of the People's Republic of China) https://www.wikidata.org/wiki/Q57251 .
So Wikidata can handle conflicting information by collecting all of it, but clearly separating the different viewpoints in a kind of "split brain". That works so long as the different sides can agree that their opponent's views are what they state they are.
In an Abstract Wikipedia article, that means that all viewpoints with a sufficiently large userbase might end up represented equally in all language versions, but they'll still be clearly distinguished as such, so the reader can apply their own value judgments to support their own side's viewpoint over that of their enemies.