After thinking about it for not too long (and after cuddling in foetal position for some good 10 minutes realizing how consensus-less fanatics have provocked this abrupt awaken of a beutiful dream) by now I am cashing my BTC immediately.
This is actually great news for Bitcoin holders (seriously). People are dumping for dumb reasons (is it news to anyone that there is a contentious scaling debate)? Meanwhile, the major obstacle to scaling is declaring that they are going off and creating their own altcoin, and in doing so signaling that BIP148 must have greater strength than generally realized, which means it is likely to succeed now
There are some issues with this logic
First, you (most likely) erroneously assume that miners (represented by Jihan and his henchmen) are actually going to fork Bitcoin. So far the consensus has it that he is just bluffing and he is not going to shoot himself in the foot (or right in the head). That may well be true, and if so, things might be and likely are a lot more complicated than that (i.e. just forking Bitcoin as announced). Second, Jihan may have actually sold his soul already (to fiat demons), and he is following some really nasty plan or scheme in respect to Bitcoin and its future, so it is not just about forking Bitcoin either, and things are not just complicated, they are in fact really dangerous in what concerns the very Bitcoin existence as such