Ultimately, the economic majority along with miners will decide where bitcoin should head. If UASF fails perhaps bitcoin would continue to be as it is now but we're likely seeing a SegWit activation either way. Hopefully no major chain split will occur because an "added value" scenario like ETC with ETH could me more damaging in bitcoin's case.
Activation of SegWit will improve or worsen the situation?
Of course, it will improve the block chain. That's why segwit2x is here. Let's wait for the activation and put our hopes in positive way.
And one thing is sure after August 1, bitcoin will be still on us.