They be actin' like they you,
Lu is continuing off the Pac reference from the last line. Not quite a comparison of skill between the two. But instead he is insisting that rappers are trying to be like him instead of Pac now.
It should also be noted that Lu has cited Pac as a huge inspiration.
Kendrick Lamar also mentioned that 2PAC was a big influence; he said he saw him in a dream and 2PAC told him to keep his music alive.
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