Why would you be better off without the venue? You don't like it, then don't go. I don't see any of your reasons impacting you personally. I would think you would approve of its existence, so that Seth could skip some of these acts you don't approve of, and book the ones you would want.
For example, next Thursday. If Fillmore didn't exist, would Seth have booked Riff Raff? Would Riff Raff even have an area show? Would Galantis have been booked anywhere?
Our world is mostly corporate-cookie cutter bs. There is always Barclay House, if you want to watch music in a basement with a backdrop that features both a pentagram and the words "Don't Feed the Pigs?" It has a great beer selection; whatever you want to bring with you.
(I also don't really like the booking at Fillmore, but I have seen a couple shows there. I was really impressed with the sound system and sight lines, two important factors for me in liking a venue, though character is important.)