Well bitcoin is the king of crypotcurrency so pretty much I don't believe what you are saying that bitcoin won't reache 15,000 US dollars. Wait until bitcoin price surprise you. And let's say it reaches up to 13,000 USD by december and a chance by the end of the year it will be 15,000. If you see the recent you'll see how much demand bitcoin is gaining.
Maybe you are right bitcoin demand increase in th recent time that can make huge increase of bitcoin price.
But let say if people dont like and dont support this fork, what will happen? People will decide to sell their bitcoin and save it in USD.
But thats just opinion, however i am the person who likee and support bitcoin fork anyway.