hi berntb. i upvoted your reply for the analysis.
a def'n of propaganda is "information, ideas, or rumors deliberately spread widely to help or harm a person, group, movement, institution, nation, etc." (dictionary.com). is this what you're claiming chomsky is doing? if so, what is the info he is spreading and whom is he trying to harm? i believe such a claim is VERY strong, and would fall under the area of mudslinging. it's a popular fox news tactic too.
A) he does NOT criticize israel more than other places (he says something similar many times elsewhere in the 3 vids). he is saying that as an american citizen, the places where the usa has an influence is where he feels he is most obligated to act. thus, if the situation in sudan is not a byproduct of usa policy, he feels the moral obligation is not as strong as in places where the usa has directly affected a region (middle east, south america, vietnam, etc.).
are you assuming that chomsky has said nothing about sudan?
i'm unsure what your critique here is. chomsky is on the record about making comments on (quick, abridged list): serbia/yugoslavia, venezuala, mexico, vietnam, iraq, afghanistan, russia, germany, iraq, iran, syria, israel, palestine, lebanon, cuba, canada, usa, china, phillipines, korea, japan, south africa, haiti, honduras, east timor, tibet, india, pakistan, libya, turkey, indonesia, brazil, egypt, jordan, georgia, colombia, cambodia, australia, etc.
and yes, chomsky has made commentary regarding sudan. further, it is consistent with what i mentioned above: he has public comments about the american bombing of a pharmaceutical company in sudan.
see here at 0:00 http://www.youtube.com/watch?v=grqPwqwoOcA
lots more info here: http://www2.math.uic.edu/~takata/WorldTradeCenter/WTC_Articl...
another factor: chomsky is american. thus is it "propaganda" if the majority of his writings concern america? isn't this acceptable? the same concern with the fact that he's jewish and has personal ties to israel. thus why is it considered "problematic" if the majority of his words and thoughts concern the 2 things he is a part of? (he even mentions this at 2:00).
further, your "all other left wingers" and "demonization of israel" is extreme hyperbole. i'm going to ignore that comment. i find all right wingers to participate in extreme hyperbole where the demonization of anyone that disagrees with them as more or less standard.
B) by "existential threat", are you referring to "israel's right to exist is questioned"?
i'll also ignore the "sadat and plo" unicorns-are-real statement, since as you say, no one knows whether it's true or not.
i'm unsure what the rest of your points are referring to. and i don't see how they support your "chomsky writes propaganda" thesis. it's a very weak thesis (i'm being generous). propaganda involves the spreading of misinformation ("lies" if you will). the only point you've brought up is that "chomsky focuses too much on israel" (he doesn't) and "ignores sudan" (again, wrong). i fail to see the connection to propaganda.