> This is what I'm talking about, is there anyone who is actually feeling isolated and uncomfortable, or are there just a load of white people who have focused on literally the most unimportant aspect of being a black person in the tech community?

I'm a POC in the tech community and couldn't care less about "master" being problematic. The tweets you quoted likely came from a white person who thinks a little to highly of themselves and want to go after low-hanging fruit.

Want to make a difference for POCs and Black people? Vote the racists and profit-driven politicians out of office this November and replace them with people who are more qualified to lead and actually care about the public.