Is it permissible to leave one's current job due to the bias of foreign workers and move to another comfortable job without considering a salary increase?

Favoring one's compatriots based on racism or at the expense of justice is among the calls of Jahiliyyah (the pre-Islamic era of ignorance) that Islam warned against, and it is impermissible if its motive is tribalism ('asabiyyah). It should be clarified that the bond of Islam is the highest of all bonds, and that Islam forbids detestable tribalism. As for the offer presented by the Saudi Research Company, it is advisable to perform Istikharah (a prayer seeking guidance) and consult trustworthy individuals if you are unable to bear with the current workers, bearing in mind that the current contract is a binding lease agreement for both parties.