I don't know if you mean to, but your posting sounds rather condescending. First, we accepted that we would get a Bixby button, but we should expect to be able to remap it. For example, when I purchased my house I totally understood it came with the most hideous carpet. After taking ownership, I was able to adjust this to my liking. We can't remove the buttons (that is structural) but we should be able to change the software (cosmetic). In fact, I can easily remap the other 2 buttons with way less issues than Bixby. I find that rather funny and very telling of just how it is being forced on us.
Also, many of us have tried Bixby and are not just repeating what others have said on the forums or on YouTube. I know this is crazy, but some folks really just don't like talking *at* their phone and find it much easier (and politer to those around them) to click one or two times.
Finally, we understand that it doesn't compete with Google Assistant and Siri, but it is a voice AI. Why do the other guys "just work" and we have to take a tutorial to find out how to make Bixby work? Also, as pointed out, in the car GA just rocks and the car is just where I need to be hands free and am willing to talk *at* my phone.
I really did try to give Bixby a try. I did the tutorial and even set up some routines. I forced myself to use it for a bit, but ended up changing my buttons on the phone and on my headsets to open up Google Assistant instead. The truth is 99% of the time when I do want to interface with my phone hands free it's because I want to call or text someone, locate or find a business, and finally figure out when how to get somewhere. I rarely don't have my phone already in my hands and think about changing or adjusting a setting and the ones that do need adjusted are already automatically adjusted without me clicking or saying a thing.