Maduro risks having ambassadors removed because he isnt recognized, which is a bit different from breaking relations. I believe it's legal for say the US to state it doesn't recognize Maduro, and ALSO to refuse abandoning its embassy, because Maduro isn't recognized, and therefore he lacks the authority to break relations and order that embassies be vacated. Should he take action against the embassy it would be considered an act of war, and the US president isn't Jimmy Carter.
What Latinamerican nations other than Colombia and Brazil do is irrelevant. Those cockroaches have been kissing Castroite butt for six decades, so I expect the same spinelessness and cowardice they have always exhibited. The question in my mind is whether the "Bravo Pueblo" has the testicles needed to create a government in exile which takes over Citgo and bank accounts, arm a few thousand men and take Zulia. I'm afraid Castro chose well, because Venezuela is both rich and its population is as tame as any I've ever seen.
So after january 10 we'll see if from 30 million venezuelans, and 3 million in exile, there's leadership and a few thousand volunteers ready to do what has to be done.
The key is to remember that homo sapiens evolved as hunter gatherer which adopted herding and agriculture about 9000 years ago. It's also important to understand we descend from the winners of thousands of years of fighting, genocide and murder. This means we have behavior that's wired in, and can't really be modified. At best it can be lacquered over and perfumed. But in the end we are what we are.
Resource scarcity and overpopulation tend to solve themselves via population collapse due to epidemics, internal conflicts which lead to a total breakdown, or wars which cause a large number of deaths and reduce birthrates.
In recent years we have seen this mechanism work in Rwanda, where genocide and war reduced population pressure, and Haiti, which seems to be a collapsed society sustained by charity and migration.
While theoretically it's possible to overcome overpopulation and resource depletion, many nations are controlled by inept governments following the wrong recipes (see Venezuela for an extreme case of a marxist and gangster hybrid mentored by the Castro dictatorship wrecking a rich nation and causing 10-15% of the population to flee while killing hundreds of thousands from murder, hunger and disease).
The Castro dictatorship ruined Cuba, and
then its ideology jumped to Venezuela
The problem, as I see it, is that misgovernance and corruption are fairly common, and therefore in the next few decades we are likely to see more collapses, famines, wars, and epidemics caused by poor governance. To make matters even worse, richer nations such as many of the European Union members and the USA seem inclined to commit suicide by reducing their birthrates and simultaneously allowing themselves to be invaded by people fleeing misgoverned societies...which can be extrapolated to the eventual replacement of well governed societies by conflict ridden and badly governed constructs brought about by possibly well meaning but misguided political parties. This means that partial collapse of civilization may have already begun, and the world will eventually be ruled by smaller populations of survivor types such as Russians and Chinese.