Is there any significance to people using emojis that match their skin tone?

I'm asking because as a light-skinned male, I always use the standard Simpsons yellow. I don't really see other light-skinned people using an emoji that matches their skin tone, but often do see people of color use them. Maybe white people don't naturally realize a need to be explicit with emoji skin-tone or perhaps it's seen as implicitly identifying or requesting white privilege.

• Is there a significance to using skin-tone emojis, and if so, what is it?
• Assuming there might be a racial movement attached to the first question, how does my use of emojis, both Simpsons yellow and light-skin, interact with or contribute to that?

Note: I am an autistic white Latino-American cis-gendered man that aims to be socially just.

Autistic text stim: blekh 😝 blekh 😝 blekh 😝 blekh 😝 blekh 😝 !!