An irony, perhaps, in the Leftist takes on Immigration and Palestine. You're absolutely right, they did seek permission but not from the native Palestinians, whose wishes were ignored.
Which is... sort of exactly my point. In Western countries right now, you have people who are saying "I don't think we should allow this unfettered immigration of Muslims, it doesn't seem like it's going well", and their wishes are also being ignored, and not just ignored but they're made out to be terrible racists for even thinking that there could be negative consequences for unfettered immigration of a hostile population.
Made out to be terrible racists by the same people who are now saying that Palestinians are completely the victims of this terrible situation and Jewish colonisers are to blame.
Now, go back to the 1920s and ask these same people, "Are the Palestinians who are saying they don't want more Jews to come into Palestine also racists? Are they racists just like the modern day Swedes are who don't want more Muslims to swarm into Sweden?"
Because... how is it different? How is a Swede saying he doesn't want more Muslims immigrants today different from a Palestinian who didn't want more Jewish immigrants in the 1920s/30s/40s?