Do people marry into the phelps cult?

like i would ume they would eventually die down, it is mostly family, like who just says, mhmm that phelps girl or boy looks good id like to be apart of that family, im pretty sure no one says that, so do you think theyll eventually die out, and im being serious, not joking, like i honestly think theyll just die down, fred is like in his nineties, and hes the root of all evil, so then we have to wait for shirely, then her kids and hopefully her kids dont reproduce, so yeah.