Several executives from top USA companies have stepped down from a number of presidential advisory councils in protest to Trump policies.
Before this latest news conference, it had become clear that the man who rammed his auto into a crowd of counter-protesters, killing a woman and injuring dozens of people, had idolized Adolph Hitler long before he joined the white nationalist rally.
Members of the Ku Klux Klan, white supremacists and neo-Nazis who supported Trump's campaign and have felt emboldened by his presidency praised Trump's initial reaction on Saturday, which blamed "many sides" for the violence.
"More and more we are seeing America's business leaders recognize that President Trump's brand of bigotry is bad for business". Frazier is resigning from the President's American Manufacturing Council citing "a responsibility to take a stand against intolerance and extremism".
He wrote on Twitter Monday that "America's leaders must honor our fundamental values by clearly rejecting expressions of hatred, bigotry and group supremacy, which runs counter to the American ideal that all people are created equal".
American voters are obligated to pass judgment on President Donald Trump.
The heads of drugmaker Merck, sports apparel giant Under Armour, tech multinational Intel, the Alliance for American Manufacturing and the largest group of unions in the U.S., the AFL-CIO, have all exited Mr Trump's council.
The BMO Capital Markets team addressed that as well, saying: "It is unclear whether Mr. Frazier's decision could lead to a more severe Executive Action (EA) targeting drug prices and whether such an EA would be viewed as retaliation by the President, thus, potentially compromising its success".
While Plank and Frazier are gone, several executives still remain involved with the Council, they include Andy Liveris from Dow Chemical, Michael Dell of Dell Technologies, Jeff Immelt of General Electric, Denise Morrison of Campbell's Soup Co., and Denis Muilenberg of Boeing.
Frazier is one of the country's most prominent black corporate executives and was the only black male CEO named to the council in January. Trump wrote less than an hour after Merck posted Frazier's statement on Twitter.
In a raucous press conference in the lobby of his skyscraper, he said there were "some very bad people" among those who gathered to protest on Saturday.
The latest to leave is the chief executive of AFL-CIO.
Indeed, Trump's vitriol against Frazier and Merck - a company that depends on the government as a buyer for many of its drugs - will perhaps have an even greater chilling effect on other CEOs who may consider speaking out.
Blankfein tweeted on Monday morning: "Lincoln: 'A house divided against itself can not stand.' Isolate those who try to separate us".
Trump announced the creation of his Strategic and Policy Forum last December.
"Any response must begin with our leaders, starting with President Trump, acknowledging this for what it is: domestic terrorism rooted in bigotry", he said.