Those same values are taught in philosophy, Buddhism, humanism. It's human nature to have a sense of justice, fairness and mutual respect. Actually current laws give much more freedom and protection than the bible.
The god of the o.t. says it's o.k. to have slaves, to beat them up, to keep the wife and children of a slave, to have concubines, to have sex with single women, to kidnap women, to divorce them for any reason and to kill anyone that finds the o.t. God repulsive.
If beleiving in Santa Clause and Mickey Mouse makes you happy and gives you hope, does that mean you should impose those beliefs on others and declare them unhappy for not beleiving like you? If you need to beleive in an invisible deity to avoid doing what is hurtful to others, then maybe your dog has more integrity than you.