Why would the opponents of the 20MB fork help them create them in the first place? I fail to see any kind of logic here.
Because (as we already extensively explained and discussed) MP & Co stand to make a fortune by facilitating and exploiting GavinCoin's failure.
The world is not bound by the paltry and facile limits to what kinds of logic you don't fail to see:
"Worse is better." -Vladimir Ilitch Ulyanov
I hate to get off-topic and we should probably take it to 'politics&society', but it seems like a related 'outright redistribution of income' strategy would be to have a large segment of the population on SNAP then just jack up food prices for everyone. The SNAP folks will come out a wash on the back of extra money paid by the rest. That seems to be already occurring here in the U.S. Whether we went through a Cloward & Piven phase or a modified one to get here is subject to question. What's not in question is that JPM/Chase is making bank running it.
As a feeble stab at being a little bit on topic, it is worth note that said large banking institutions have a much bigger footprint in society with their control of money flows than the MPII has with their potential minor losses on their 'intellectual property' exploitation, and we've seen the kind of pressure they can bring to bear on the free exchange of data between individuals in cyber-space. It's pretty pie-in-the-sky to believe that JPM, GS, etc would not have Bitcoin in sight out of the corner of their eye and the ability to bring a world of pain if/when they feel inclined to do so.
Back off-topic and back on the Cloward & Piven thing, how to 'jack up food prices' in a 'free market'? Even if one has leverage over the majors as the corporations they are (e.g., Archer Daniels, Midland) it's not all that easy. Hobby farms would become actually viable as prices increase and take a chunk out of the best layed plans. I hypothesis that this is one of the driving forces behind the significant push to re-define and control 'waters of the U.S.', 'wetlands', etc. Sure, some small number of people will be able to run hobby farms, but they'll pay the state dearly for the privilege and their prices will be adjusted accordingly.
Of course the same game played with food could work equally well with energy, utilities, etc. My water bill for my house in town has taken a giant upswing in recent years and I see various 'assistance' programs for the less well off to offset this misfortune.
Back on-topic a bit, never underestimate the devious mind of a Socialist (spoken as a former quasi-socialist myself.) Even one who just wants to provide everyone their 'entitlement' to use Bitcoin just like rich folks do.