The GTS system is a pain

i have problems With the GTS system in the Pokemon games most notabily sun and moon most trainers are asking for legendary Pokemon or Pokemon at insanely high lvls or or lvls like Salamance lvl 10 (I know Salamance can appear in S.O.S chaining) but this is JUST RIDCULOUS. Like ditto is sought after and the legends? Really Most Pokemon are a one time thing unless u use the power saves to clone or duplicate items. And my issues mostly are the Pokemon that evolve from trade holding ITEMS like this type of trade can be a pain to do because you might have to give your best Pokemon for a slowking, Politoad, Magmortar, Electivire, HECK EVEN MILOTIC. I just wish that getting these Pokemon were a lot easier for Pokemon trainers that can use wifi to gain these type of evolution pokemon