Why do some political scientists believe "issue networks" are more prevalent than "iron triangles"?

Some political scientists believe "issue networks" are more prevalent than "iron triangles" because there is an alliance of various interest groups and individuals who unite in order to promote a single issue or agenda in a way that influences the government policy. Issue networks can be either international or domestic in range reliant on their shared goal.

the ss was the main organization responsible for the genocidal murder of around six million people of european ethnic minorities, essentially jews, in the holocaust. the members of all its branches committed war crimes and crimes against humanity during the second world war (1939-1945). likewise, the ss were involved in commercial enterprises and exploited the inmates of the concentration camps as slave laborers.

the tortures and assassinations committed by the ss were the result of an ideology developed long before the armed conflict, this ideology was based on the racial supremacy of the germans over the rest.

the answer is mass marketing.