Explain to me how this would be a good fold preflop...

How can overshoving be bad - what flops do we stack off with on???...the worst that can happen is AA/KK slowplayed us preflop and we lose a buy-in, big deal. We can't be too concerned that the squeezer has AA/KK either. IMO get the money in preflop or go played fixed limit where we can fold the flop or work out the odds to draw to something because it will just be harder to hit that all-in button at the right times in bigger games if we're scared to lose a buy-in.