We live in a sort of society which is really rudimentary in a lot of aspects.
One of them is judging people for their personal image. More specifically, a lot of people are not hired for a job just because they have got tattoos on their skin.
Tattoed people are considered rebel, immature, less capable or less "person" than someone with a totally clean skin.
I think it´s a mistake to judge people's values and talents just because of their personal-image preferences. Here in Spain, people are still judge because of that, among many other things. However, in other European countries, companies hire tattoed people for important positions; we should really learn from them because everyone has the right to work.
I think tattoed people should be able to denounce people who harras, bully or insult them. Everyone has the right to work, and a tattoo shouldn´t be an obstade for that.