If you dislike manual interventions, Gentoo is probably not what you want. I mean, my experience is a bit dated, since I stopped using Gentoo in 2009, but oh boy, those half system rebuilds because an important library update, not fun. Maybe OpenSuse Tumbleweed is something you want to look into? Unless you consider it RHEL because it uses RPM packages.
If you dislike manual interventions, Gentoo is probably not what you want. I mean, my experience is a bit dated, since I stopped using Gentoo in 2009, but oh boy, those half system rebuilds because an important library update, not fun. Maybe OpenSuse Tumbleweed is something you want to look into? Unless you consider it RHEL because it uses RPM packages.