Laws that classify people unreasonably are said to

Laws that classify people unreasonably are said to be discriminatory.

Explanation:

The discriminatory laws can be defined as the laws which differentiate people according to their age, caste, religion, gender, disability, national origin, race, sexual orientation, genetic makeup, and other personal characteristics. This discrimination can be occurred or notice at the different place and different time.

For example: women always face discrimination on the work place in the form of low salary, long working hours and sometimes some employers not hire them because on their basis of gender.