If you are interested in the total number of usage ( aka reference count ) of a tag very often, I think you should store it in the database, example put one extra field to the Tag model, like.
For your use case, the performance of generic wouldn't matter, because you need anyway to do N queries over 2N tables (one for each "taggable" model and one for each m2m join table, at least).
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.