Why are people worried about Donald Trump sharing an article with upside-down pink triangle?

US President Donald Trump has come under fire after posting an opinion article from The Washington Times on his social media ...
Yahoo

Fact Check: Yes, Trump posted link that included Nazi symbol for gay men in concentration camps

U.S. President Donald Trump posted a link on Truth Social that displayed a symbol Nazis used to identify gay men in concentration camps. Trump posted a link to an article, which displayed a preview of ...

Yes, Trump posted link that included Nazi symbol for gay men in concentration camps

U.S. President Donald Trump posted a link on Truth Social that displayed a symbol Nazis used to identify gay men in ...