You might want to examine article 28 of the fourth Geneva Convention.
"Art. 28. The presence of a protected person may not be used to render certain points or areas immune from military operations."
"How about we call them both out..."
Good idea. In fact, that's the point of the posts you object to. The examination of racist tweets "called out" one specific kind of racism without any attempt to "call out" any other kind. Why would you defend that sort of conduct? And why would you defend it by accusing it's detractors of exactly the sort of shortsightedness that the examination of racist tweets suffers from?
Governments posses the authority to use force to compel people to do their bidding while corporations mostly don't try to force you to do anything. When corporations _do_ try to force you to do something, they employ government to do it for them. When one person has a gun and has demonstrated a willingness to use that gun to compel people to do their bidding while another has a whole bunch of money, I fear the guy with the gun more than the guy with the money.
Even simpler answer: during the 20th century governments slaughtered more people than any corrupt corporate evildoer could ever possibly hope to kill. The worst a corrupt corporate evildoer wants to do is enslave you or seize your posessions. They honestly don't care if people live or die, unlike government.
Governments are responsible for in excess of 100 million deaths, exclusive of casualties of war. Corporations haven't got nearly so bad a record as government.
Reality must take precedence over public relations, for Mother Nature cannot be fooled. -- R.P. Feynman