Off course why look after your allies when they are no longer useful.

On the other mater. It was perhaps a good thing for the followers of Fawkes and his buddies that the plot did fail. Catholics were a very small and distrusted, even hated, minority in England at the time, can you imagine the genocide and violent backlash that would have resulted had some of them really blown up the king and parliament. The reaction of the religious zealots among the protestant majority especially, would have been horrific. The whole plot was mad and ill conceived from the start.

A crying shame the Guy Fawkes was sold out by one his followers.
An even bigger crying shame that the U.S. and its Allies walked out of Afghanistan leaving their Afghani allies in the lurch.