Toxic white guilt - is a term that can assist an individual to know the difference between guilt that motivates a person to take action or for a person to remain stuck.
The group of white people meeting to have the difficult conversation is a model that many of us can take. The conversation will be difficult, however the dialogue can bring about an understanding that is escaping many. The group defined as 'white' need to do the work and change the face of racism.
Over the years I have participated in a number of diversity and inclusion training sessions, and honestly none were 'white' only. I can see this as a gap. In multicultural groups, the learning was important and eye-opening, however missed the critical piece of the conversation going deeper with the 'white' participants. In an all 'white' group, you can have the deeper conversation and won't have bias of 'another' pushing you deeper. This group can hold up the mirror to encourage the tough learning.