Yeah this is the worst thing of all about BG3. They talk a good talk about being a game of choices and consequences, but it is complete BS. Sure, it has a ton of choices, but all of them are entirely superficial and meaningless, where they give people the feeling, the *illusion*, of a choice even though nothing meaningfully happens or changes in the world or the story or the quest. BG3 is the most railroady RPG of all time.
I remember Larian talking about it. Their goal wasn't to make a tree root-like structure which would have been unthinkable for a game with such scale a production value, it is to give choices in the context of an act and wrap it up for the next act. Does that mean that BG3 choice is just an illusion? Absolutely not, there are clear cases where acts choices bleed into each other : tiefling refugees, the hag and Mayrina, Scratch, Minthara, many companion decisions, the nightsong and the list goes on. Sure it pales in comparison of some games (Pathfinder comes to mind) but you are being disingenuous by saying that it is an "illusion", and flat out wrong with your last statement.
And yet, we have @Gray Ghost and @Black_Elk and many, many others, both here in this forum and in other forums, saying what they're saying. And I choose to believe them.