I’m really not the best person to ask this, as I’m atheist myself, so I’m sending this out to anyone who’s reading this who’s Christian or Jewish and would like to share their thoughts!! The only reason I can come up with is that God was being cruel to be kind, or sacrificing some lives for the greater good and to free his people. Also, I guess you could argue that the innocent Egyptians weren’t ENTIRELY innocent, as they stood by and didn’t try to stop the slaves doing their bidding (although some were children….so…idk). And also maybe they went to heaven, so it was seen as though they were going to a better place? As you can probably tell, I really can’t defend a God I don’t believe in, ya gotta ask someone else 😂 Again, thanks for the question though!