Legal, tax paying, educated professionals who have an approved employment based (EB) immigration petition (Form I-140), should be given their immigrant visas based on the order in which they started their EB immigration process.
As H.R. 3012 proposes, the allocation of immigrant visas by Department of State should be fairly based on the beneficiary's place in the queue of EB beneficiaries and should NOT be dependent on the beneficiary's country of origin.
EB immigration's only objective should be to retain the best that US can attract. Diversity among immigrants has its own immigration lottery and should not be an EB immigration issue.
Note that this bill does NOT have any impact on the number of immigrants, the EB category delineation, or the number of temporary work visas.