The wizard found an existing species of monkeys and turned them into people that he then enslaved and was planning on turning into an army that he could sell. Way different than Moradin, Corellon, or Gruumsh making their own children from nothing. If the species was already existing and the gods just turned them into "people", that would be a different conversation. But you're intentionally mischaracterizing the gods of D&D's base lore.
No, not really. The gods created a species, feed of their faith and often direct their race to do their bidding. So that would make everyone else more of a slave than the hadozee who managed to get rid of their creator before he could make them do anything.
Because all you need to see are those two images. That's all you need to see a problematic connection. If something looks racist, it looks racist, regardless of other Minstrel art in 5e.
No, you need to see more than just the two pictures, because when you only show those two and intentionally withhold other pictures of prancing bards you are intentionally forcing people to make the connection you want them to make.
Instead show people the picture of the hadozee, the one from the minstrel show, the halfling bard and for example the dragonborn troubadour.
The story being similar to the white savior story does not require the skin color of those invoking the white savior role in the story to be white. It's a "these people saved this previously-monkey race from slavery".
So you now can't rescue people because you are then a "white saviour"? That is quite a stretch to do in order to fit this into a specific narrative. Was Han a white saviour to Leia? And later was she a white saviour to Han and Luke to her? Not to mention that white saviour also implies that the non-whites are passive and did not help themselves which the story leaves open as it is unclear who killed the wizard.
You are making quite a lot of assumptions to fit the hadozee into the white saviour narrative.
It being a common trope does not make it better. There are plenty of common tropes/stories that are racist. If the intersection of these two stories make it look racist, it's still a problem. Intent, context, and other stories don't matter. Only the subject does. If something looks racist, that's a problem.
And yet strangely no one complained before when in a piece of fiction a species, including apes or even humans, were uplifted with the intention to be slaves, but then overthrow the slaver. Most of the time this story was even seen as empowering but here you only focus on the "were intended to be slaves" part which you equate to being slaves and not on the fled and killed their slaver part. Why? Maybe you should ask yourself why you want to squeeze the hadozee into a specific narrative and why in order you do so you assign the hadozee attributes to make them fit the narrative which they do not have when you look at them neutrally while leaving out things that do not fit.
Likewise SciFi and fantasy is full of animal people. Especially older scifi used anthromorphic animals all the time from bird people, tigers, lions, ect. While more hard scifi often had uplifted monkeys because uplifting them is the easiest from a scifi science point of view (or doplhins).
Likewise animal and even monkey people are not uncommon in fantasy either. We just had Ardlings and there are several monkey people in mythology which fantasy also adapted. Yet only here this is now a problem and fantasy monkey people are equated to real life people.