divisive - Causing disagreement or hostility between people, tending to disrupt unity or harmony.

The election was fought over the deeply divisive issue of immigration, and people on either side of the issue can't see things from the other point of view.
ostentatious - Characterized by vulgar or pretentious display; designed to impress or attract notice

In an ostentatious display, the socialite walked down the street wearing a fur coat, several gold necklaces, and silk gloves and hoped somebody would notice her.