If Kore's 1xBTC fork dies in a death spiral, which really could happen due to sudden hashrate loss and/or an attack from miners, this will cause a major loss of confidence in BTC as a store of value. Sure, people can say "Oh, BTC is 2x now, we knew it all along.", but what about those who lost funds being on the wrong side of history clinging to their 1x coins? Those will be practically worthless!
Personally, I started losing confidence in BTC 2 years ago when it became clear that the scaling wouldn't ever get done. That's what created the whole market for alts IMHO. And that's why BCH has tremendous potential to pick up where BTC left off - with 8x the transaction capacity with 4000x lower fees.
Of course all the Kore minions will be emotional. But what choice will they have? Follow the longest chain supported by the most hashpower, or be left behind.
in that scenario i would consider any coin that was descended from bitcoin a failure and would never have anything to do with any of them again.
it doesn't matter what the lead coin is, the same politics and people would infect it and the process would start over and each time it would get weaker.
better to wash our hands of bitcoin, take the lessons it taught us and move on.