> Can someone explain if this software is ethical?

Probably not. People have been coming up with ethical frameworks for thousands of years and we have yet to come to a consensus.

So it’s very unlikely that someone can say conclusively whether this is ethical or not, because that would require us to either 1) prove a single ethical framework is correct and then apply that framework to this software or 2) prove that under all possible ethical frameworks this software is either ethical or not ethical.