"Even more toxic" is not usually the preferred phrasing for comparing with ethanol; it implies you're comparing with something that's already quite toxic, and e

"Even more toxic" is not usually the preferred phrasing for comparing with ethanol; it implies you're comparing with something that's already quite toxic, and ethanol, while indeed toxic, is not normally considered quite toxic enough that we don't need to go out of our way to stop people from drinking it.