Who are you including in this 'we'?
The US and it's people are the least racist on the planet, and comes the closest to providing equal opportunities (not equal outcomes) for all.
This depends on time frame being considered. In previous decades and centuries there was far more racism than there is today, what little racism remains certainly isn't of the 'systemic' variety which is constantly being claimed.
The criticisms of the 1619 project are with the historical facts that it's presenting. While that's fine for someone's book or published articles or op-ed page, it doesn't raise to the bar needed to be used as educational material, it is wholly unsuitable for this use.
EDIT:
If it's not history, why base history education on it?
Yes, have been quite significant, and recognized as such. Look at the long and celebrated history of black educators or example. I don't know what you believe to be 'traditional knowledge is that all our advances are because of our white ancestors.' I recall junior high and high school US history classes where those black educators and their contributions, as well as many others, were discussed.
Again, I don't know which junior high or high school history classes you attended. Jazz, for examples, is a direct outgrowth of black music, which continues to evolve as well as evolving into other music forms.
Except they are not being ignored.