I can't say I agree with this. I think that definitions tend to change over time in some cases, but in this case it's not that far along (and hopefully won't go further). Being gay was once seen as bad too, and the rainbow (once symbolizing / also still symbolizing God's promises) now predominantly symbolizes homosexuality. The same thing happens with words. Gay used to mean happy, a faggot used to be a bundle of sticks. I don't think it's weakness at all, but language and symbols changing over time. However, the OK hand to white supremacy is a horrible change and it should be fought against, not given over.
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ThisName I think this is also related to your post.
During previous times, homosexuality was considered negative just like white supremacy is now (though there won't be a fight for widespread acceptance of it like there has been for gays). From the point of view of old times though, this symbol arose while carrying a negative meaning in the past. From God's promises to homosexuality - in the old fashioned world views, it's quite comparable to the OK hand being taken over by white supremacists.