This image is solely “deliberately intended to offend religious sensibilities” - it is based on the fact that homosexuals who disagree with Catholicism hate Catholicism and demand that it change to accommodate them. They are no different than Mohammad.
The piece was donated to the museum from philanthropist and gay rights advocate Joseph Pabst, who originally bought the painting for $25,000.
http://observer.com/2015/06/a-portait-of-pope-benedict-made-of-condoms-sparks-outrage/