All the merchants that accept bitcoin are not going to wake up and just start taking Litecoin or any other coin. They would probably just watch for a while before making any decision.
They'll just drop it all together if this continues to go on.
This is becoming interesting in some way. SegWit blockers are going to ruin themselves this way, it's all clogged and fees are going through the roof.
Also, the record has been broken. lol