The phrase "all their consequences" is correct and usable in written English.
It can be used when discussing the outcomes or effects of a particular action or decision.
Example: "We must consider all their consequences before making a final decision on the project."
Alternatives: "all the effects" or "all the outcomes".
Once he had joined such an organization, he was subordinate to military, orders with all their consequences.
He explained: "In front of any painting, figurative or non-figurative I felt more and more that the lines and all their consequences, the contours, the forms, the perspectives, the compositions, became exactly the like the bars on the window of a prison.
Failure to do so will result in our sometimes judging actions or practices to have better consequences than some alternatives when, taking all their consequences into account, they do not in fact have better overall consequences.
Just like not telling the truth, incompetence, stealing and immorality all have their consequences, too".
When we are concerned with the consequences of actions, social practices, and institutions, it seems a reasonable presumption that we should consider all of their consequences.
None of the wars in which we followed the US, with all their disastrous consequences, have been covered by Anzus.
Without further action, there is a real danger that the world will be overwhelmed by proliferation risks and incidents of nuclear weapons use, with all their catastrophic consequences.
If we accept religious texts as the writings of an omnipresent being, then we must either accept the texts fully with all their necessary consequences or reject the texts outright and just enjoy the morals and values that they impose.
It opened on East 62nd Street in February 1921, its mission to remove the tonsils and adenoids of poor children on the East Side of Manhattan, thereby preventing sore throats and streptococcal infections and all their serious consequences in an era without antibiotics.
By controlling and guaranteeing what counts as money, the government can solve the problem of financial panics, with all their untoward consequences.
Similarly, Jane English (1973) argued, though on the basis of different considerations, that any two Ramsey sentences that are incompatible with one another cannot have all their observational consequences in common.
