The first sentence reads:
Assumptions and stereotypes about white people are examples of racial prejudice, not racism.
Your claim was:
all white people are inherently racist.
Those aren't even slightly the same thing. And your third linked source directly refutes what you've written in
its first sentence:
Race
“A social construct that artificially divides people into distinct groups based on certain
characteristics such as physical appearance (particularly skin color) ancestral heritage,
cultural affiliation, cultural history, ethnic classification...
If your whiteness is constructed by sociopolitical factors, it cannot by definition be "inherent" to you. "Racism" in CRT is an institutional reality that primarily exists as a broad social structure rather than the sole product of individual decisions. It categorically affects you regardless of your personal opinions, so it's not that you are a racist so much as that you live within a system of institutionalized racism, and therefore benefit from it whether you agree with that system or not, just as you benefit from other social insitutions that favor you regardless of whether you personally agree with them, such as capitalism or the concept of governmental welfare or national citzenship.
If you actually read your own links, they discuss this in some detail.