At this point they are the main secular party. We can talk about why there aren't more secular players (again, Israel, the US and also neighboring countries have done their best to make sure these kind of groups don't gain traction).
It's not just two parties. Any peace agreements need buy in from the US and neighboring countries. No one has really tried to help the peace process along, and if they did, it was while sabotaging it in other ways. There are certainly failures on the side of the Palestinians, but it pales in comparison to the sabotage and betrayals we've seen from Israel, Egypt, Jordan, or the US, for example.
I'll also add saying Palestinians do not want peace is a comically useless statement given many of these Palestinians are products of their environment and responding to it. You can't blame a 16 year completely for not wanting peace and hating Israel when that well has been poisoned decades before they were even born.