It's nowhere near that simple. Broadly speaking, Singapore is more classist than racist: moneyed expats of all colors have it pretty good here, and locals of all colors are treated much better than workers doing menial jobs. Yes, there's currently a backlash against Indian immigrants in professional middle-class roles, but not long ago there was a similar backlash against mainland Chinese.

I think some of the backlash against PRC people persists.

Doesn't having a popular black president in the US from 2008-2016 rather undermine the idea that black people are an underclass in the US? As opposed to being a group that on average have lower income than other groups in society?

Couldn't assuming that any individual black person has low income or is part of an "underclass" be considered racist, in the sense of making judgements about individuals based on their skin color?

https://en.m.wikipedia.org/wiki/Underclass

You’re reaching to find racism in a place where it doesn’t exist. Pretty bad faith attempt at understanding the point he was making.

Pointing to a country’s president as example of how black people are no longer underclass is akin to saying “he did it, why can’t you?”.

That's not what he's saying at all. What he's saying is "If black people are an underclass in the US, then why did a majority of them vote one of the "underclass" in as President?"

Which I think is a valid point.

Could you see an Algerian voted in as President of France?

To be extra pedantic, Barack Obama ain't a classic African-American. His dad came to America as an immigrant.

Recent migrants with black skin seem to do much better than African-Americans who ancestors have been in the US for generations. Feel free to insert your own speculations as to why.

Are you living under a rock?

Sorry if I'm being rude, but ... seriously, I would be curious how much you know about U.S. history and current events. What's your context / are you a young person / do you not watch much news, or know much history?

LOL. I'm definitely assuming that you don't live in the US otherwise you could not ever make a specious claim like "black people are not an underclass in the United States." Even the hardcore Trumpies will agree with this claim, they will just blame it on the black people themselves and say it's the consequence of poor choices rather than racism, they won't point to Barack Obama and Neil DeGrasse Tyson and say "no they're not."