I wanted to get back to this post but hadn't had time;
What Balmain would bring to a merger with Easts is a tangible link to the Tigers brand, a brand that makes up the majority of the support of Wests Tigers to this day. If you think Balmain have f**k all fans, look how many fans you see at WT games rocking Balmain gear as opposed to Magpies gear.
Okay, but how valuable would that "tangible link" actually be in real terms.
To keep things simple we'll carry on with your example of people wearing Balmain gear at Wests tigers games.
Now lets be very charitable and assume that all of them can accurately be described as Balmain fans, and none of them are just Wests Tigers fans in a heritage kit (which, to be clear, is a faulty assumption). Then we'll be even more charitable and estimate that 5k fans at your average Wests match are "Balmain fans" as you describe.
Now we have that (very) charitable estimate of 5k, what percentage do you think would be willing to continue actively supporting the club once they've relocated to Brisbane/merged?
I'll tell you right now that it's not a very large percentage, but for sake of argument, and to again be charitable with our estimates, lets say 50% even though I speak from experience when I say that the actual number would be significantly lower than that.
Now lets extrapolate from there that roughly the same percentage of their broader fanbase would continue to support the club after the relocation/merger, and that leaves the real terms value of your "tangible link" as a charitable average of an extra 2.5k fans at Brisbane Tigers away games in Sydney and a few thousand extra people watching on TV (keeping in mind that realistically those numbers would be significantly lower).
In reality that wouldn't be very valuable to the club or league in real terms, and I think it's reasonable to describe that as 'f**k all fans'.
Furthermore it'd come with tons of baggage, as it's inevitable that taking those actions would have negative effects on the new club's potential fanbase in Brisbane. I'd go so far as to say that you'd potentially turn off more people than you would gain by "linking" with Balmain, but you'd need to do extensive market research to confirm that.
If the goal is solely to re-engage with the Balmain fanbase (and I'm not necessarily saying that it is or should be), then you'd be better off folding the Wests Tigers, handing their license to a new team, and putting some money, exposure, and good heads behind a Balmain NSW Cup side that plays out of Leichhardt full time. If you played your cards right you'd get better engagement from the Balmain fanbase, and you'd do it without impacting on another market.
A large part of the rest of your post is waffle built off the faulty premise I've addressed here, or short-sighted attacks on the AFL that I have no interest in rehashing for the thousandth time, so it's not really worth the effort to go though the rest of your post, so I'll just leave mine here.