David Cameron is trying to use his position as Prime minister to scupper the debates for all the other parties. Between them the Broadcasters came up with a formula for the debates that was universally agreed upon and was popular with the public.
Why is this important?
The only person who wasn't happy with this arrangement was Cameron, ultimately because he is running scared of defending his record. We, the public, need the broadcasters to stand strong against Cameron's bullying. We want you to stand by the formula you have agreed amongst yourselves and with the other parties, and empty chair Cameron if he decides not to turn up.
No one person should be allowed to wield power in the way Cameron is trying to do. It is wholly undemocratic. We the electorate are already feeling a growing disdain for politician and democracy in general. The debates give us a unique opportunity to scrutinise the party leaders on prime time television, not through the filter of a propagandist newspaper media. That's why the broadcasters need to be seen to stand strong against Cameron's attempt to manipulate these debates to suit his own agenda.