If there's demand for handguns or EBRs and BPS stops carrying them, someone else will step up and fill that market niche.
I mean, people bought handguns and EBRs
BEFORE there was a BPS or a SW, right?
If anything, BPS dropping EBRs or handguns would be a boost to the LGS's.
But honestly, that's unlikely to happen because if BPS, Cabelas and SW decide to cut handguns and EBRs, then they basically become Sports Authority or Dicks.