I don’t think you’re really understanding this quote at all… Which is probably because you’re one of the 9. By letting the Nazi sit with them they are accepting him and his beliefs, in a sense even if we aren’t agreeing with him not only are we saying that this table is safe for Nazis meaning more could join but we’re also saying that it’s ok to be a Nazi since they’re invited to the tables so in effect we have not only made Nazis more comfortable but possibly more present.
This isn’t just “someone I disagree with”. I disagree on who’s the best baseball player or what’s the best condiment on a burger, I don’t just “disagree” with a Nazi I flat out reject every single part of who they are. I will as soon throw a Nazi into the river than I would have them be anywhere near me. Nazis want my friends dead, what kind of friend would I be if I sat at a table with one.