You are looking at bitcoin the wrong way. People that bought bitcoin, did so just to get free money with the fork, 99% of bitcoin holders don't care whatsoever about bitcoin technology, they just want to be rich, speculate. It's not going down, not to 3k at least. It will surely drop a bit but it's almost 24 hours after the cancelled fork and the price is pretty much the same. Even if it drops 1-2k it would still be at 5k and even at 3k it's still a lot considering it got there in merely months. Also SW2x was not bitcoin's hope. We do need a solution for scaling but clearly SW2x wasn't the one. A lot of people viewed SW2x as a threat, not a solution. There are other possible solutions that will hopefully be implemented in the near future but for now bitcoin is going to be the same. I know people that owned a good amount of bitcoins and they didn't even know about the fork. Bitcoin is an ''investment'' right now, almost no one uses it as currency, everyone is buying to get rich fast.
There are those who predicted that had SegWit2x not cancelled, it would result into some sort of a chaos and can even be the one to enforce a big crash on Bitcoin. In other words, it is just fortunate that it was eventually cancelled as it was not actually the right solution that the whole Bitcoin community is looking for. In fact, there are many well-known cryptocurrency personalities who started a campaign to block the implementation of the planned SegWit2x and they cited many valid reasons for that.
It is quite funny for OP to be predicting an unbelievable big crash suggesting that soon Bitcoin can reach as low as $2,500 level just because the scheduled hard fork is now gone for good. I think it would be really be the other way around. As of press time, Bitcoin is having some corrections but it can soon be bouncing back and there is a big possibility that it might try to win over the $8,000 level though am predicting it can stay within the range of $7,500 for some time before making any real surge ahead.