Well, I'm late to the party, but it seems like rammy.site is failing to load for me.
If it's as bad as it sounds from the quotes I read, then it should definitely be defederated from. Any instance peddling hate and/or propoganda needs to be defederated immediately. They need to be denied audiences.
Edit: Well following the rammy.site link thru lemmy.world does not load at all, but it loads just fine if I search rammy.site on a browser. Could that mean that lemmy.world admins have defederated already, and haven't announced it yet? Here's hoping.