If it matters to you, support it by showing up when it’s happening. Come – bringing a good version of yourself* – whether you feel like it or not. Seek to contribute. Ask how you can help. Tell others.
When a crisis happens, step up. In between crises, do things that will reduce the likelihood of the same thing happening again or minimise its impact.
People will trust you when they get to know you, when they see that you’re part of the scene and are there to contribute, and when it’s clear that things are better because you show up.
*You can’t bring the best version of yourself all the time, but you can manage a good one.