I lived through every Father's Day of my life without a living father to honor. I survived, even when the rest of the world around me was celebrating. Some years I got something for my grandfather in lieu of my dad, and other years, I did something special for my mom, since she was playing both rolls. Some years I did nothing.
People need to stop worry about every little thing offending some certain group. Those certain groupd just need to put their big boy pants on a grow the hell up and move on with life!