What does it mean for people of different ethnic groups to live parallel lives in the same cities?

This is to be welcomed, because people’s inability to discuss race issues in a civil manner has further contributed to minority inequality and conflict. Indeed, this failure to have forthright discussions about race has led to people of different ethnic groups living parallel lives in the same cities.

Explanation:

in an absolute  monarchy, the  monarchrules as an autocrat, with absolutepower  over the state and government — for example, the right to rule by decree, promulgate laws, and impose punishments. the  monarch isnominally sovereign but the electorate, through their legislature, exercise political sovereignty.

are there any options?