Do you really believe they can be allowed to be a part of Schengen agreement? Brussel is not that insane to open borders to a nation of prostitutes travelling to India and Mexico to escape poverty.
As for a Ukrainian capacity to trade with EU I have pretty much summarized earlier. You haven’t said a thing proving that I was wrong.
And yet Schengen visas are available to Ukrainians though generally limited to 90 days. One has to prove financial capacity