khallo

replace "productive" with "feeling energetic and excited" in that response and their arguments are still valid. If you want to work on something, anything, there are going to be days where you are energetic and excited, and days you will feel like shit. The author of the article is suggesting to quit when the days are shit, and that is a bad advice.

There is nothing that will keep you excited forever.

I don't think the issue is about "becoming" any of those nationalities you mentioned. You might not be considered Indian or Nigerian or Kuwaitian in those countries, but you sure as hell won't be ostracized or receive disapproving looks. That is speaking generally since every country has racist/xenophobic people.

Blackface is quite common in Japan. Example: https://www.bbc.com/news/world-asia-42561815

They have more work to do on their attitude towards foreigners than opening up more immigration channels.