Play some where else... simple as that. If you want opponents who aren't all in mech... find new opponents. You say that you don't have the versatility to build the lists you want... to be frank... you can build any list you want... If you want to win 90% of the time... then you have to build a list to counter your opponents. Complaining that you hate building lists so you can win is like Complaining that the cheery on top of your ice cream is too sweet.