If he really would want to help for Bitcoin then he would support Segwit and donate for development, instead of supporting Real Bitcoin he created fake Bitcoin and advertise it as an hardork, he is just trying to steal what Satoshi Nakamoto and Original Bitcoin did in 10 years.
If he really wanted to help, he would talk to Core about a compromise involving the continuation of Bitcoin as BTC but with changes to Core's code. I don't think that Core have handled this very well.
Bitcoin might well not get a hard fork, but I think that the OP's post isn't particularly reasonable. The claim that it "stole" $300 from Bitcoin is particularly strange - Bitcoin's price going down is not bad for everyone and for someone to sell someone else has to buy, knowing that the value will go up in the long term. For some groups it's very positive, such as day traders who profit from the volatility.
This seems to be an attack on hard forks in general rather than Bitcoin Unlimited - Bitcoin Unlimited is bad because it's wrought with bugs, increasing the block size won't be good for everything and because the split of value between regular Bitcoin and a BU coin will be very strange and volatile. But you don't mention this at all - you could equally call any other hard fork a theft of its original form.