How are plebeian and patricians are alike

They were both citizens of ancient Rome and eventually, both held political status.

Plebeians and patricians could also get married. Wealthy plebeians became part of the Roman nobility. However, despite changes in the laws, the patricians always held a majority of the wealth and power in Ancient Rome. A third social class in Roman society was the slaves.

it refers to race, i am pretty sure this was a popular term in nazi germany or something.