Have you ever seen consang flags or symbols on Pride March?

Are there any activists openly living in a consang relationships and being a spokespeople?

I am not in this kind of relationship, just none of my family members is appealing, but I am so curious of this.

Once I was an LGBT supporter and someone asked me: what if it was brother and sister? It gave me a mindfuck. Of course I was against it but wondering why, in spite of supporting Queer community.

Moreover, I had a colleague, who bought an apartament corporately with his sister. Someone ask, if they are couple. I said: no, sibilings. And someone jockingly asked: why not both? It also made me think.