The thing about the whole "trust FSG," or "don't trust FSG, they are only in it for the money", or "watch them carefully because we've burned before" is that whatever you choose it doesn't matter other than how you feel about it. The fans have no real say in how the club is run and never have. The only thing you can do to change how the club is run is convince as many thousands of fans it would take to change how much money the owners make. This didn't even happen when the club was on the verge of administration. It won't happen.The idea that the fans got Hicks and Gillette out is a myth. It simply isn't true. Hicks and Gillette are not the owners now because they took out a loan, backed by the club, and couldn't pay it.
So, what really matters is how you feel about the whole thing. If the commercial and marketing part of modern football depresses you or pisses you off you can decide to pay attention to it and be depressed and/or pissed off, or you can simply watch the games and the only commercial/marketing thing you will see is a name on the shirt, the same as for the last thirty or so years. This still means you can get pissed off about players, or transfers, or the manager, just like you used to. The Kenny and Brendan thing is just like the players, you like some of them and not others, you are sad to see some go and others stay, but you support all of them.
If you don't care one way or another about marketing you can just be a Liverpool fan and be happy about it.
If you want Liverpool to be good you have to approve of the commercial or marketing side, but you don't have to pay attention to it.
If you are interested about how the club is run as well as supporting them you can discuss marketing and commercialism in modern football etc..
You can choose to pay attention to what you enjoy and avoid the things you dislike. You can't change what you dislike into something you enjoy, you haven't the power, you never did. What I recommend is paying attention to the things you enjoy about Liverpool FC and avoiding the things you don't. Doing otherwise is like hating the credits at the end of films, watching the film and enjoying it, and then deliberately staying for the credits.