Edison did not electrocute any animals to spread fear. Presumably you're referring to the electrocution of Topsy the Elephant which Edison had no involvement with and took place years after the War of the Currents. You're basing your entire argument on a complete and total myth.

https://en.wikipedia.org/wiki/Topsy_%28elephant%29

https://www.discovermagazine.com/the-cruel-animal-testing-be...

Thomas Edison did not attend the electrocution of Topsy the elephant, but his film company did record it, and he did directly fund electrocution of dogs years earlier (1888 is the year mentioned here).