> How many do you think they would have managed to kill?

They killed 200 and wounded 2,000. This is information from a year ago.

> but it's off by orders of magnitude if we assume a targeted campaign against civilians.

No it is not. It's not like they are only attacking civilian targets or concentrating all the drones allocated on that section of the front on Kherson city. Also, Ukrainians regularly eliminate such small drones, so only a fraction manages actually to get through and injure/kill someone.

There are many sources linked on that Wikipedia page extensively documenting Russian human safari in Kherson. There are many videos, such as this one:

https://www.bbc.com/news/articles/cn4n03xg981o

The evidence is overwhelming.