I suppose that, perhaps a little depends on your bandmates' response to your decision to go solo...

You seem a little put out by some venues preferring to remain with a full band. Now imagine if your sax player, or guitarist, or singers went out, got themselves a bunch of high quality backing tracks, and started to compete with you for even the solo gigs (that you are now offering as a cheaper alternative to clubs that DID used to book the whole band) that you now enjoy sole access to...

How would you feel about THEM perhaps taking jobs away from you? Would you still be 'blaming' the venues for not choosing your solo act, if they had others they were familiar with to choose from..?

Breaking apart a band, and then going after the same gigs as a solo has all kinds of ethical questions and possible outcomes...