I do not really see that there is an issue.
people in bronze 5 are not picking support
but you still expect there to be a support in each team.
what is solution?
Wait for support? Will take forever, no game will start.
Also support players will start getting picky and dodge a lot.
Like they did in team builder.
Yank support player from higher division? Not fair to higher division support player.
Support players in better division worked hard to not be in bronze 5.
Yanking them into bronze 5 because bronze 5 do not wish to play support is unfair.
it undermines and devalues all the hard work these better support players put in to play with better team mates.
Share farm and not have a support?
Maybe you guys should. Get some gentlemen's agreement going and share them CS.
not as effective as having a support, but everybody gets to play.
Can bronze 5 ADC players not have a fit and AFK because their lane mate looked at a CS?
Both support players decide to AFK at fountain, game is 4v4.
Gentlemen's agreement needed. you up for it?
last but not least:
some mechanism by which the whining bronzies are coerced into playing support.
Choose from these solutions.