Finally, it's not like the installer is actually supposed to work. If you need an installer, don't use gentoo. Gentoo is to be installed manually, period. The installer is broken and it should be.
The reason is that many infiltrators at the top of the Gentoo heap, do NOT want Gentoo to become popular.
They wish it to remain an obscure, hard to use, distribution,.. that frankly, no one will use.
This sabotage of Linux is absolutely everywhere. The excuses for it differ from one instance to another, but the sabotage is clearly everywhere.