Son compartido

My mom and her siblings want me to marry my first cousin. Have they completely lost it? So, I’m 31. Independent, atheist, earn my own living, have my own home that also houses my wonderful mother. I’ve been very clear about marriage and I’ve told my great parents (divorced) that I am not ready to get married and when I am ready, I will let them know. For the past 2 years they have been bringing up the topic of marriage on and off but I’ve been adamant. I have also clearly stated that I have deci