It is interesting to consider why we have aversions to certain plants and flowers. Your explanation Charithea re Oxalis as to the reason why you are not fond of yellow flowers being a good example. I have found myself ' disliking' certain plants merely because they featured in every garden that I knew as a child growing up in a row of terraced houses each with a long narrrow garden where Chrysanthemums, Dahlias, Michaelmas Daisies, Anemone japonica etc etc featured. Since in most cases these gardens were the domain of the men, who grew vegetables, it would seem likely that such flowers were perhaps grown for cutting.........Anyway I shied away from many of them for a long time - too easy to grow?, snobbery - too common?
I remember suggesting to a friend, whom I was helping to create a garden here in Italy,
to use Cotoneaster as a screen close to his car parking area. He turned his hands up in horror " Oh no " he said "My father planted that everywhere"
With encouragement he relented and we alternated it with Eleagnus ebbingeii. He now has a wonderful evergreen hedge.