Yeah I think OP the artist is doing kind of a visual strawman here, as also mentioned by this person.
I don’t see evidence at all that any significant number of pro-Palestine individuals are single issue voters. Someone made a claim that 3% of democratic voters were single issue, but upon inquiry it turned out to be without source, and that the true number is less than 2% of all voters at the very absolute most.
As of now, I need more evidence to disprove my belief that this post is just an outrageously patronizing false generalization of the pro-Palestine movement.