What is behind the idea is surely an attempt to allow a few Liberal Democrat MPs - it may be significant that in his speech Boles praised both Jeremy Browne and David Laws by name - to join the Conservatives by stealth.
At the next general election they would hold their seats with the help of Conservative votes, beating the new Liberal Democrat candidate. When the National Liberal party folded a year or two later, they could quietly and regretfully join the Tories.
Stephen Tall (and sometimes this blog feels like a dialogue with him) has an article on Liberal Democrat Voice, where he tentatively reaches a tamer version of the same conclusion.
What interests me is what he goes on to say:
It’s a shame because there is an interesting speech to be made about the prospects for a National Liberal party, one which brings together the Orange Bookers, the Blairites and the Cameroons. There would be disagreements over civil liberties, but on the economy, public services, the environment and Europe they would have more in common with each other than with their current parties. Tribal loyalties, combined with our stultifying electoral system which inhibits new parties, means such an alliance is unlikely to come to pass.To which I say is thank goodness for tribal loyalties.
Because this natural seeming confluence between large parts of the three main parties is based less on shared ideology than on a shared social background.
These days mainstream politicians are overwhelmingly likely to come from the same wealthy middle-class families, to have been to the same limited range of schools and universities, to have worked as special advisers (and perhaps in a more lucrative career and then to have been selected to fight winnable seats.
The are all light on ideology and tend to buy in their policies from charities and think tanks. Their shared enthusiasm for "evidence-based policy" disguises a tacit, unexamined agreement about the nature of the problems we face. Where is the evidence-based policy for reducing income inequality, for instance?
I can see the idea of a party of sensible, moderate party that would unite people of good will and stay in power for ever will attract some politicos - especially exhausted Liberal Democrats. But the idea of institutionalising this social exclusivity and political timidity does not attract me.
Is the pejorative term "tribalism" - of which Liberal Democrat were accused in the 1990s when we stubbornly and unaccountably refused to join Labour when Tony Blair was so wonderful - just another way of describing what little distinctive thinking British parties still possess?