de facto - in practice but not necessarily ordained by law or in practice or actuality, but not officially established
Reading comprehension isn't your strong suit is it.
The de facto repeal of the 10th Amendment occurred on April 9, 1865.
The 10th Amendment was never repealed, de facto or de jure.
Today it is more honored in the breach than in observance, but the reason is not Lincoln.
The reason is that states are far too eager to feed at the Federal money trough, for them to object to any conditions Big Government might put on taking its "free goodies".
Before states can enforce the 10th Amendment, they must first be willing to turn down Federal "free money".
Do you know of any who routinely do that?