I respect your opinion OP, but I have to disagree. The special effects and the death scene are awesome. The rest? not so much...
First, just cause the Director was French, doesn't mean: Oh it's European, so it's supposed to be weird. European cinema has serious and dark stuff just as much as the previous Alien films.
Second, it's never implied in the movie that this is wrong, an abomination. The scientist is implying that this is the next step in the Alien evolution. That the Newborn is better. Even though it's a lot uglier (not in a good way) than the beauty of the biomechanical creatures in the first 3 films. The biomechanical aspect was already being decreased from the third movie, but that's cause of ADI and their poor design choices IMO. We see the Newborn, an awkward, fleshy thing, kill the huge, armored Queen with one swipe of it's ugly hand, that doesn't even have any claws. Not very convincing to me. And all that just to show that we have a bigger, stronger, more mean Alien, somehow better. I get a sense that that was implied and that felt pretty bad to me personally.
And I'm saying all of this as someone who actually doesn't hate the movie. Love some parts, hate others.