Israel being critical of Spain doesn't mean they're involved in dumping migrants over the border. It's quite a leap to go from a tweet from Netanyahu's son from 7 years ago to Ceuta today. That's at best evidence of poor relations between Israel and Spain, not of Israeli involvement in human trafficking in Ceuta.
The "paid part" is the implication when the conspiracy is that the Moroccan military is dumping migrants across the border as dictated by Israel. They wouldn't be doing that for free and implies that the Moroccan government is complicit as well.
The fact that the video is a real video of a group of maroccan alone is enough for the far right to weaponize the event regardless of if israel is involved or not
Sure, but the left shouldn't legitimize their false narratives as that hurts other people. Nor should it legitimize actual antisemitists.
What exact evidence are you looking for?
Literally anything that proves A) this was orchestrated by the government, whether that's the Moroccan or the Israeli one and B) an actual concrete link between the wave of migrants and the Israeli government. That seems to be the bare minimum required to even entertain a conspiracy theory like this. But I honestly think the conspiracy is a little ridiculous on its face (Morocco wouldn't go along with this) so I personally am not actively trying to prove anything here.