It won't. XT will reach consensus or go bust.
Even all the fuss and chaos in anticipation of whatever the outcome will be, is already extremely damaging to Bitcoin's reputation and success.
The thing is, this situation was inevitable from the whole beginning. The ability to fork the code and throw it in the wild is trivial. It happens now and will certainly happen again. If the economic consensus that makes bitcoin what it is works just fine, there is nothing to fear about. The market will find its way and this experimentation will clear out a lot of doubts. The more bitcoin grows, the more different and opposite views it will encounters. What will be interesting is how it will reaches consensus each time it will be forked or attempted to be forked.