Progress has been made DESPITE the resistance of many (white) Americans. It will not take everyone because not everyone will join in getting rid of racism since benefits are derived from certain groups of people being denied rights and privileges. For example, many rural whites work in the prison industry. They have a material stake in maintaining the disproportionate  incarceration rates of non-whites in general and Blacks in particular. 
"All lives matter" is a truism and therefore pointless as has been aptly pointed out by many above. 
You are entirely incorrect that EVERYONE will be necessary to effectuate change. It's never been EVERYONE and change will come despite not EVERYONE participating toward that goal. Certain types of white people have and will continue to hinder such goals, motivated by small-mindedness, fear, ignorance, hatred, geography and level of education.