I have a speaking event for genocide survivors and I'm thinking of keeping people out of it.
What makes you want to keep people out of the event?
I want more space for survivors of the organization.
Discrimination can be justified if you can show it's a proportionate means of achieving a legitimate aim. Your desire to have more like-minded people will limit your audience, though.
I'm glad you see my point of view. I just want the survivors that show up to feel safe.
I completely understand where you're coming from. I would recommend making a public statement explaining this, that way you don't look bad for discrimination.