I agree with your defacing comment, but if a person is charged with a felony there goes their 2A rights out the window. Spray painting graffiti is not something that should cause someone’s 2A rights to be taken away. This is just government finding more and more ways to disarm people.
Yes the 2nd amendment does not prohibit felons from owning firearms, but until that injustice is rectified people who are convicted of felonies will have their 2nd amendment rights denied.