It isn’t just Qatar that’s funding the jihad.
You would be right that they are not the only one. I think Israel is simply identifying Qatar as the PRIMARY funder of Hamas. Turkey is also involved and part of that new block of Muslim countries backing Hamas (as reported in previous articles I’ve posted. Iran was also a former funder, but Hamas and Iran had a falling out. I don’t know if Iran is funding them in small way, but I suspect they are, as Qatar appears to be falling into Iran’s orbit.
And before Egypt deposed the former Muslim Brotherhood President, there was some cooperation with Hamas there. That is over, now with Egypt, as they are hammering Hamas for being in cahoots with the Muslim Brotherhood in trying to take over Egypt.
And Jordan or Saudi Arabia don’t seem to be in the sphere of Muslim countries funding Hamas. Jordan and Saudi Arabia appear to be aligned with Egypt and Israel, against Hamas.
The two major blocks of Muslim nations which seem to have Hamas at the center (one block opposing and one block supporting) are Turkey, Qatar and Iran -versus- Egypt, Jordan and Saudi Arabia - with Israel aligned with Egypt.