Just because the founders did not create a perfect country on the first or second try does not make them evil. Did the Wright Brothers create a jet? Did Ford create a Ferrari? Everything improves over time.
What you say is true, but you’re missing the point.
The objective is to replace the white population, particularly white males, with anyone else who is not white.
Part and parcel of that is to erase American history, since it was the white European who risked everything worldly (literally) to create this great country.
If all goes as planned, the straight white male will have no place in the New World Order.