why do you believe that knowing who owns it is good for the public in all cases? business owners are also a part of the public, you know, while megacorps like google aren’t so much
All cases might be asking a lot, but more often a good for the public than not is enough. The vast majority of business owners are no worse off for that data being available. It's just another cost of doing business, and a fair one I think.
Megacorps like google shouldn't be able to hide what they do just by creating a LLC under another name.
Those aren't the same at all. An LLC is a privilege created under state laws and it's perfectly reasonable for those states to require records that the public can access in exchange for that privilege and the benefits it offers.
Having consumer privacy is good for the American public. Having access to know who owns an LLC is also good for the American public. Perfectly consistent.