What is the ruling on the mixing of male and female students in universities, colleges, institutes, and private schools, especially given the observable rise of forbidden practices and the imitation of the West?

Religiously, the mixing of male and female students in one classroom without hijab is forbidden, due to the great corruptions it entails and the transgression of Allah's boundaries. Every Muslim must condemn this evil and strive to change it. Guardians must prevent its occurrence, and students' fathers must prevent their sons from entering these schools. Students must refrain from studying in them, and teachers must refrain from teaching in them. Furthermore, scholars and preachers must clarify the truth and the dangers of this mixing.