Virtue signaling is performance art for people who've confused having opinions with having impact.
You changed your profile picture. Congratulations. The algorithm noticed. Nobody else did. That's not activism. That's a firmware update for your personal brand.
Here's what I've learned in life: the people actually doing the work rarely have time to tell you about it. They're too busy. Doing the work.
You want to care about something? Care about it. Quietly. Consistently. When nobody's watching and there's no engagement metric attached.