What are defining by ‘universal’ though? Universal across ALL humans? Well clearly no because there are tribes which have isolated traditions and beliefs surrounding particular things that we find revolting.
Even if there was something that EVERY group of humans found reprehensible, there are still going to be individuals that will do it.
This is only if you are a British national. Admitted I only scanned through the OP’s post, but I didn’t see anything other than a comparison with the French system.