They don't hate it because it's ugly. I think the simplified version here is they hate it because they don't want to fulfill the role it does.
Frankly, I think the US might be better off allowing the US Army to set up its own units for close air support. I suspect if they were allowed free choice of equipment they would operate some type of rugged STOL fixed-wing airplanes for that purpose.
I'm assuming you're talking about this? https://en.wikipedia.org/wiki/Unification_of_the_Canadian_Ar...