Are environmentalists who want to help Humans in addition to protecting the environment being hypocritical?

No. Humans are a product of nature. Humans are also very selfish. Figuring out how to help humans without hurting the environment further is an essential part of protecting the environment. Most people are not so extreme in their views as to believe the only hope other life on Earth has is for the extermination of humans. After all, if we have the intellect to exploit nearly any environmental niche, we should have the intellect to coexist with the natural world.