My point was regarding the special case where a single individual who might not like one of the resulting chains controls a huge percentage, at least 5% of outstanding coins. Is there anyone like that in eth? Maybe the DAO hacker if they hadn't forked... I think that was several percent of all eth. And, in fact, maybe someone else did control that much eth, and maybe that's why etc is at least an order of magnitude cheaper.
If for example Satoshi dumped a billion dollars on BU, he could take those profits and buy core BTC, and make it more profitable for miners to mine core. Obviously this is all unlikely, but if it did happen it would have lasting impact imo. He wouldn't even have to sell them necessarily, he could just move them to exchanges and say if you want the price of BU btc higher than X you better be prepared to buy $1 billion dollars of my BU btc.
still temporal.
notice the event of the mega rise and dump of 2013-2014...
its just history.. no one talks about mtgox anymore.. just a temporal price drama. gone, forgotton.
if all you care about is the price. then expect 6 months after your greedy moment has passed. your then left with the thought of..
was that greedy moment worth it to have core in sole 100% control where bitcoin is a TIER network, with multiple implementations diversely on a minorty network.
or
having multiple implementations diversely and happily on the peer network, whereby core left in the minority as an alt in their own tier network.
try to think passed your greed of price drama and think about the network as a whole and the long term results