They do not need to be second class citizens.

他们不应该是二等公民。

youdao

Older people should not be treated as second-class citizens.

不应把老年人当二等公民对待。

《牛津词典》

We were second-class citizens and they treated us as such.

我们是二等公民，他们也就这样对待我们。

《牛津词典》

"We've been together four years and it's wonderful that we're no longer completely second class citizens.

VOA: standard.2010.03.03

Supporters of the code, more than a decade in the making, praised it as enhancing the rights of women and girls, who they say have been traditionally viewed as second-class citizens.

VOA: standard.2009.08.27

They included many from Aberystwyth, who claimed students who wanted to learn through Welsh were being treated as "second class citizens".

BBC: NEWS | UK | Wales | Mid | Student road block halts minister

"There must be no second class citizens in this country, " he wrote.

WHITEHOUSE: Dwight D. Eisenhower

Those who do not attend college are second-class citizens in a cultural sense first, and in an economic one only second.

FORBES: I Went To College, Law School, And Grad School - Because I Wasn't Born Elite