Claim: HAMAS is only Attacking Because of the Siege

OlehGirl has an excellent response to the claim that "HAMAS is attacking Israel because the border crossings are closed."

In addition, I want to add a few things.

HAMAS claims that it is simply using the best tools at its disposal to force open the crossings. However, let's examine what it is, in fact, doing.

• It periodically attacks border crossings that are at least allowing humanitarian aid into Gaza, but not with sufficient strength to actually take them. It does this, knowing that the Israelis (and Egyptians) must respond by completely closing these crossings.
  
• When Israel begins to allow more goods into Gaza, the Gazan terrorist gangs launch rockets and mortars into Israeli towns. They do this, knowing that the Israelis will respond by closing the crossings. 

If HAMAS and other Gazan terrorist groups are attacking Israel because of the closed borders, then why do they attack border crossing stations that are Gaza's lifeline, forcing them to close? And why do they specifically target Israeli border stations when these open further and allow more supplies into Gaza, but generally ignore them while they are completely sealed?

Unlike Israel's use of force against HAMAS, these pointless attacks on border crossings and on Israeli civilians do constitute disproportionate use of force as outlined in Dore Gold's column in JPost, because they have no possible military value, and are simply violence intended to cause misery to civilians (Gazan as well as Israeli).