Yet the broader historical fact is that virtually no nation or people performed well on the metric of "giving Jews refuge". Not Americans, not Brits, not Australians, and not Palestinians. If it is self-soothing pablum for Palestinians to tell themselves that they tried to give Jews refuge from the Nazis, it is little more so than the British patting themselves on the back for the kindertransport as a means of ignoring their much broader hostility to taking in Jewish refugees -- a hostility which was explicitly antisemitic in character. Everyone prefers to think of themselves as solely the part of the hero (or at least the noble victim), but part of growing up means accepting the warty parts of one's own history.
But again, this is a very human foible. Awkward attempts at historical revision to make oneself feel better, but which have the effect of minimizing or downplaying the wrongs done to others, are an ever-present feature of political life. That doesn't make them unreal, it just makes them ordinary. If you're Jewish and Zionist, think of all the times you've heard and perhaps repeated the mantra "a land without a people for a people without a land." Imagine what someone like Rashida Tlaib thinks when she hears that. It is a mantra downplays hurt caused to another -- people who very much were also of that land. Eventually, upon encountering the narratives which inform us of how it hurts, the better among us shift to new language -- but that awkward moment of transition will always be there. And so when we hear tales of how Palestinians "gave" Jews refuge, and bristle as to the historical illiteracy of the claim, we are indeed experiencing something. The point, though, is that it is nothing different from what many others -- Palestinians (and Jews, for that matter) included -- have experienced before.
In reality, imperfection and awkwardness and partiality and belief in comforting myths that make one out to be the hero of the story is a human condition, not a specifically Palestinian one. The sooner we attribute it to being typically human rather than atypically monstrous, the better of we'll be.