White people have wealth, power and control, it is true. But what do they do with that power? The white men in charge of the largest corporations in the world do not have white interests at heart. They are internationalists, and liberals, who want to homogenize the whole world. They don't care that European culture is being erased; in fact they actively push for "diversity". The only reason European heritage survives at all is because of ingrained cultural biases of those men, which the Critical Race Theorists in charge of the Black Lives Matter movement (a movement popular with those wealthy white men) seek to erase through explicit racially-biased laws and rules.

Furthermore, people care about fairness. If white people are being treated unfairly, why does it matter that they have more wealth than other groups? I think most people other than communists still care when a wealthy man is treated unfairly. Look at how whites are treated in the media - massive under-reporting of white victims, for example, and constantly attacked for unproven assumptions that white "racism" must be the cause of disparities. It is very clear that if I, as a white man, were to apply for a job or an education disguised as a black man, I would get preferential treatment thanks to the literally millions of "diversity" initiatives that privilege non-whites over whites.

Follow the trajectory forward. With so many whites having an out-group bias, and with the white population shrinking while the non-white population grows, what will happen to whites in the future? They will have less relative power and control than they do now. That is not going to be good for our interests. But we get called "conspiracy theorists" for pointing out this Great Replacement.