UPDATE 1-INSIGHT-U.S. companies vow to fight racism but face critics on diversity

In the past, U.S. corporations have largely remained silent as protests erupted over killings of African-Americans by police officers. That changed with the May 25 death of George Floyd in Minneapolis, which has set off a flurry of corporate statements of solidarity with the black community – along with pledges of more than $1.7 billion to advance racial justice and equity.