but may I suggest that he changes landscape? why not resign?

Why would he resign? “freeing himself from further responsibilites” as you suggest is supposed to be a viable reason? Why should he give up now? After all wasn’t he chosen by the great majority of the Palestinian people (just like the new government was? actually the newly elected government got 43% of votes, Fateh 41% and the PLO factions collectively got 57% …and when Abbas was elected president, he received 62.5% of the population’s votes)

I don’t know why resigning never occurs to Arabs, really

In Palestine, you’re talking about a democratic system unlike the rest of the Arab World …i.e. Syria, Egypt, Jordan, to name a few so resigning will not occur to them … How many non-arab presidents resigned? Nixon forced to. And when Jamal Abed Al-Nasser resigned many people took to the streets protesting, wanting him to stay in office! Again, President Abbas (executive) was chosen by the great majority of people - those same people who chose Hamas (legislative). Being president gives him presiding power over decisions, veto power, the final call is his call. So if you want to get down to being supportive, you’d expect that the legislative branch (Hamas) is the one who should be more supportive!

Obviously it’s because of being occupied that they are not allowed to have one

as hamzeh says, But there are Palestinian Security Forces! I believe 3800!

When Yasir Arafat, God rest his soul, was in power he as president clashed with his prime minister over who will control the security forces. Back then the US had been backing the prime minister on the issue of controlling the security forces but Arafat never gave up. Today the same scenario is repeated, there is a clash between the Palestinian president and his prime minister over control over the security forces.

The common denominator between the two incidents? The US backed Mahmoud Abbas. He was the prime minister in the first incident, and now he is the president. Back then he wanted the prime minister to hold control of the security forces, today I’m not sure he likes to talk about that!