One Million Moms is calling on its members to forgo shopping at after its CEO Jeff Bezos and his wife MacKenzie gave $2.5 million in support of Referendum 74, the Washington state ballot question which would uphold the state's gay marriage law.

The law was set to take effect in June but was put on hold when opponents turned in more than twice the number of signatures needed to put it up to a public vote in November.

One Million Moms, which has close ties to the Christian conservative group American Family Association (AFA), is the organization which made national headlines earlier this year when it called on JCPenney to fire comedian Ellen DeGeneres as the department store's spokesperson because she's openly gay.

“So long Amazon,” the group tweeted.

One commenter on Facebook questioned the group's logic.

“To boycott AMAZON is over the top,” Tamra Bowman-Thein wrote. “OMM is eventually going to run out of places to Eat, Shop, Work, etc … this was a personal donation. … This one just doesn't make a lick of sense.”

(Related: One Million Moms targets NBC's The New Normal for ad boycott.)