As I said there is too much to summarize here. The Republicans, communists, and anarchists were very divided within themselves and their "goodness" varied a lot

As I said there is too much to summarize here. The Republicans, communists, and anarchists were very divided within themselves and their "goodness" varied a lot from person to person, group to group. Certainly that coalition was flawed. These are all commonly cited as reasons for their failure. There are some positive things to take from them however. And I find it rather unambiguous that Franco was bad for Spain.