they're not selections in the cherry picking sense; the country's history is a constant stream of oppression and political violence.
only one of them is a specific event, but i pointed it out it was particularly fucked up. but the rest aren't specific at all; they're entire periods of time where the "fucked up" was the norm, and the law.
i don't exactly understand what you think we're talking about. you say it's a "specific problem" but didn't specify it really. so i don't know what's supposedly impossible merely 20 years ago.
but merely 20 years ago gays couldn't marry. 20 some years before that the AIDS epidemic was ignored because the government thought it was a gay problem and didn't care.
there was always oppression and there still is. the orange cunt didn't invent anything. he just started saying the quiet part out loud.