Board Thread:Episode Discussion/@comment-112155-20160503211042/@comment-3347453-20160505204813

Bratpack wrote: Magneto created a device that would turn humans into mutants so that there would not be a species war with everyone as mutants. During the first experiment, Gyrich "melted" because it did not work well. Similar basis in Hive's thinking... That was actually Senator Kelly, not Gyrich.

As has been pointed out already, there's also the fact that this version of Hive is basically the MCU equivalent of Apocalypse.