I’m a bit confused about what you’re saying. I think in the pictures you have chosen, it’s a bit of a stretch to relate them to transgender colours of blue, pink and white. They are frequently used colours that are going to be encountered everywhere - as the photos you show prove.It’s like how come everyone of them have these same color combinations? because they are telling us, but the majority doesn't even pay attention
Purple is bi-sexuality, not transgender? Rainbow is associated with gay pride, not trangenderism?