When viewed through the Biblical lens indeed. But it means nothing that I don't buy this wall painting and a cylinder - seal as showing that the Hyksos were Israelites, I have to give good reasons to doubt.
Firstly, the cylinder -seal. You would have to do more than make or recycle a claim that it represents the 12 tribes of israel. We have a man, a boat, a lion as a repeated pattern. How do you make that the 12 tribes?
Next this figure. Taking the best view. This figure is a Hyksos official wearing a coat given by the Hyksos king as a symbol of favour or authority. Or perhaps as a garment of conferred rulership. Depends how you want to read Joseph being given the coat as a symbol of authority over the other 'tribes' by his father. It isn't signifying a position as an official by a Pharaoh, even if Joseph held that position. The figure didn't look very kinglike either, more of a skivvy running off on some errand. But however.
I suppose it doesn't matter whether you read it as actually being Joseph or some Hyksos king or official holding the multicoloured coat rank. Covering all bases, suppose this dream coat was a symbol of either Egyptian or Hyksos authority, why couldn't this - just as we see from the four -room house that pops up from middle kingdom upper (southern)Egypt to 8th century Palestine - just be something that the story writer knew about and anachronistically handed to Joseph? Which would make sense if it was a known sign of authority like a crown or sceptre, but turned into a sign of primacy amongst the Hebrew tribes by Joseph's father. The old story of a Biblical spin on a (possible) real thing? Bottom line, even real things in the Bible don't make the Biblical narrative true if there are reasons to doubt it.
And I already went over the reasons to doubt that the Hyksos were anything to do with the Hebrews. From what I have seen in the past and after your post

the Hyksos were Canaanite traders, immigrant workers, just people looking for a better life (since Those intermediate Pharaohs never got that wall built) and didn't seem to represent the various city - states of Canaan but a Canaanite people unifiedi in their acquisition of power in the nome of Goshen as a valid Egyptian dynasty (which even the hostile king lists recognised it was) and eventual rulers of Egypt - which for a time, they were.
Add to this that they were kicked out of the delta some time before those kings Amenhotep and Tuthmosis or Thutmose, and even if you had Israelites amongst the Hyksos, the 'Exodus'i s done before those kings appear and we are back to Canaanite kings being kicked out of the Delta by Ahmose I and not Hebrews being led out by Moses.. And there is still the borrowing of Sargon in the Bulrushes and the anachronistic mention of Philistia that suggests a Babylonian date for Exodus (1)
Bottom line - the evidence is against the Biblical version of the Exodus even if one credits the wall painting as anything to do with a many - coloured coat. You still have the contrast between a Canaanite ruling dynasty and enslaved Hebrews making bricks.
cue

I have my Theist hat on. The Hyksos rulers may have been ejected but the Hebrews (for some reasons - were kept on as slaves and the Exodus happened under later Pharaohs, right? But where is the evidence for that? The Hyksos evidence won't help. Nor would claims that it was there but sunk in the mud (Delta archaeology is trickier than Pharonic archaeology) or, of course :'It is there and we hope it will turn up eventually'
I did see one effort to make the 'storm'Papyrus (or stele) relate to the 'plagues' but it doesn't. It is Ahmose referring to the very mundane depredations of the Hyksos and nothing to do with Biblical plagues.
(1) same idea coming to various people, perhaps, but I never saw the Moses/Ahmose connection or Babylonian Exodus mentioned before (though the vague attempt to relate the Hyksos to the Hebrews was an old apologetic) and I always considered the suggestion I made as very speculative, but I saw that same thing cropping up a few times last night as I surfed .