We'll need to check this. I don't think we have special rules against importing localhost, it is likely that at least parts of your issue are related to this. Also, because reducing the number of lists is a solution for you (so I assume it works without the lists containing localhost?).
We officially support Debian (+ Raspbian), Fedora, and CentOS.
As a project done by a few in volunteer work, we have not only limited time, but also limited financial possibilities to go out shopping for hardware. We simply cannot afford getting compatibility with all devices that are out there, however, as you see here, we're always trying our best to help users. Even though your issue is still not fully, the major issue seems to be the extreme number of lists containing something invalid (see below).
Please try
This may fix your (or at lease parts of your) issue. This other discussion also contains an instruction how to obtain the domains that are causing the issues like
so we can see what one of these unescaped " characters is about.