Yeah I agree that right now it does seem like if the two sides fought the Inner Circle really should win
That's why I think they will split up or have internal disagreements
Also don't underestimate Thunderbird he is like the best mutant on the show for fighting pretty much
And you're not alone in disliking the Strucker family a lot of people would prefer those be mutants from the canon
Another thing is Reed's mutation could "even the odds" or even tilt them in the Underground's favor plus they just found that new girl Cristina and she is TK it seems