Those are interesting quotes, even though I'm sort of wary of assuming that a brief quote accurately sums up someone's political beliefs.
I always think, when people condemn the IRA, or condemn Palestinian suicide bombers, that maybe their opinions would change if they were ever in those situations. Perhaps if you were a Catholic person living in the North of Ireland, being discriminated against in housing, in education, in employment, even being denied the right to vote in order to change those things, perhaps even someone who considered themselves to be a pacifist wouldn't be able to hold to their non-violent principles. If you lived in Palestine, if you were under curfew for week after week, not allowed to go to school or work and only permitted to leave your house for a few hours a week to buy food, if you saw the IDF dropping bombs on one of the most densely populated places on the planet, wouldn't you want to resist in some way? Would you really be able to sit back and allow yourself, your family, the people around you to be treated so badly?
It's really easy for me, living my nice cozy life in the UK to claim to be pacifist, to claim to reject violence. It's a little different when you live in a situation where you're on the receiving end of that violence on a daily basis. What right do I have to condemn people for their decision to resist their oppressors?