Which kind of Bolshevik? Not a Stalinist - he helped undo the East European Stalinist regimes. Is he a closet Trotskyist?
Soros donates money to, and directly organises, the same sorts of minority causes the Totskyists promote (feminist, migrant, green, gay, indigenous). Like them, he supports World Government.
Both endorse the notion of a multiplicity of genders (male, female, gay, lesbian, transexual etc), rather than the usual two:
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Feminism is based on a rejection of sexual polarity and complementarity: engagement.html.
Instead, they promote Androgyny - the idea that the individual human contains both sexual poles, instead of just one. It's the basis of the Unisex movement (unisex hairstyles, unisex character-traits, abolition of complementary roles in marriage).
Compare this with Egyptian art, which depicts male & female figures in conjunction - unity obtained through the coming together of two sexes. Or the yin-yang symbol on the Korean flag: its basic idea is that, although each sex contains the germ of the other, it is through their harmonious mingling that unity is obtained.
The idea of Androgyny underlies the push for "Gay Marriage".