My mom's sister married a Mormon and converted. Their kids are in their late 40s/50s and are still believers. In the 90s as a teen, I was in the goth scene, drapped in black, long hair and Christmas was great growing up, we talked, laughed, exchanged gifts, played games. Because we did not care what others believed, we're family and love each other. My other aunts were just as great, we did not see them as much but in college I'd visit another aunt who may or may not be Christian but she welcomed me everytime, never looked down ony tattoos, horror themed shirts, goth style, etc. If my fam was like you, not being invited would reinforce my Pagan beliefs as I see it as reward