When "the end of the occupation that started in 1967" is completed, then of course I would support a boycott of those that were against the peace that had been established. The PLO is the sole representative of the Palestinian people and as such represent the whole Palestinin people, not just some fractions of it. The same obligation that the Palestinians have to fight of the occupiers, they will have to ensure the peace once Israel has retreated behind the Green Line.
Islamic State militants blow up ancient Arch of Triumph in Palmyra (Reuters)
from the article: The deep abyss of Israeli discourse