That sounds rather offensive to the Orthodox in Egypt who get this tattoo by necessity.
I am more than aware of the Coptic tradition. Your gesture has nothing to do with their real and genuine reason for getting a simple cross tattoo.
It's not self-indulgent; I got it to protect my right hand from falling into sin and to pay tribute to the Copts in Egypt. Besides, I didn't pay for it, my grandparents bought it for me as a birthday gift. I went to the tattoo artist my dad goes to.
Where you got it done is of no consequence. As for your right hand, what's to stop your left hand from falling into sin?
And spare me the sop and mush about praying tribute to the Copts. Don't insult their very real persecution by your indulgent act.
Traditionally the tattoo is supposed to be done in blue or green to commemorate the bruises from wearing chains around the neck
Stop making pale excuses, and brush up on some history.
The color of traditional tattoo inks of old were so because of the availability of certain pigments, not because of some idea of bruising from chains or fetters. The Maori and other Polynesians have tattooed themselves for centuries, and long before Europeans tried to subjugate them. So did certain Amerindian tribes before the conquistadores moved in.