Even when there's some shred of truth to claims like this, it's never a good idea to explicitly defend a US-backed dictator. Here they're explicitly referring the Fujimori government's battles with Maoists who I do suspect were infiltrated by the US who was playing both sides to get fascists into power for natural resources extraction etc.
On reason I'm more than passively familiar was that I dated a woman who was taken from Peru as a baby and adopted by Americans in the 90s. She'd reconnected with her birth family and even met other adoptees from the same area and it really just seemed like they were basically kidnapped as kids.