Uhm, 'ugly' child gets belittled by his/her peers long before they learn about political/social systems. It's got nothing to do with socialism (and no, I'm not defending or condoning it).
In this case the child wasn't ugly, just that she wasn't pretty enough.
So I doubt children would mock her, but no sane adult would,
now the whole establishment did something pretty nasty
Secondly this is not about children, its about the philosphy of
the people in charge. They have a child on stage, a symbol
of innocence and purity, and in socialist states children
are very 'revered' (in the propaganda that is), then they
substitute her for a 'prettier' child. The meaning is lost,
as even a maimed crippled child would represent something
more than an ideally looking one. Secondly, the Olympics
are not a beauty pageant.
Marx would be proud.
Brings back a time, 1932-1945.