If we suddenly started seeing a lot of Robinson jerseys being worn, people would start complaining that this is the equivalent to wearing a confederate flag shirt and would call upon the NFL to ban the sale of Robinson jerseys since they would be deemed 'offensive'.
Supporting traditional marriage, however subtly, is always "offensive." I'll keep the jersey idea in mind - but I'll hold off a while to see if any of the Buffalo Bills express similar sentiments. :-)