If morality is subjective, everything is permitted

If morality is subjective, then the belief that it is wrong, always and everywhere to believe anything for insufficient evidence is also subjective. That I should care about truth as opposed to comfort is also subjective. That I should treat gay people as equal to straight people and not discriminate against them is also subjective. Or that I should treat black people as equal to white people and not put up "Whites Only" signs in my restaurant is also subjective. That women should be given equal pay for equal work, and not be restricted to being barefoot and pregnant in the kitchen is also subjective. That I should have sex with someone only if I have their consent is also subjective. That it is wrong to inflict pain on little children for your own amusement is also subjective. That I should care about the poor and the oppressed is also subjective. That I should want slaves to be freed from bondage is also subjective. That the Holocaust was despicable is also subjective. That 9/11 was morally wrong is also subjective.