Oh dear. I’m sure that it wasn’t your intention, but your letter reads almost like you don’t want anyone sympathetic to the Palestinian cause to talk to average American voters (or other Westerners).
I really think that anyone who wants to support justice (for Palestinians or for anyone else) should be speaking primarily for a general audience and the uninitiated and unconvinced — not for other activists. This means focusing on conveying the true nature of the current situation and the history — which is totally opposite most Americans’ understanding and most media portrayals — in the simplest, most familiar terms possible.
If the goal is to actually effect change, then every time someone begins to understand the Palestinian perspective or to see Palestinians as not just terrorists or to see Israel as a settler or apartheid state — whatever is a step for them personally — is a win. Step by step, make people see.
Take a look around. Israel is a militarily, diplomatically and financial powerful state, frighteningly so. It has unconditional support from the (all-powerful??) United States NO MATTER WHAT — vetoes, massive amounts of money, diplomatic cover and on and on. It further has extreme fealty from all major American media.
A pessimist would say that Israel (and its most right-wing, imperialistic elements in specific, mind you) has this thing locked down solid, but I like to believe that oppression, apartheid and ethnic cleansing will out…somehow.
Criticizing fellow activists, excluding insufficiently educated/prepared activists, or even simply focusing on fellow activists, is not the way these terrifyingly long odds will be overcome.
Furthermore, unconditional U.S. support of Israel has driven all kinds of chains of events that have wreaked destruction on many, many other countries; killed Americans; cost Americans many billions of dollars; and advanced domestic surveillance and the curtailing of civil liberties in the United States. Americans and others should oppose this blind support of Israel for all those reasons, not just out of devotion to Palestinians.