Panama DID put a potload of money into expanding the canal for larger ships, and also managing the water supply better*, so, I’d be ok with a reasonable fee if we send through a ship needing the expanded capacity — a carrier, perhaps?
Otherwise, I agree with others here that the main issue is sidelining the Chinese.
*More improvement are needed on the latter. It’d really be the “shits” if we needed to quickly move a task force through the canal, and the water supply was insufficient.
Nimitz/Ford class will not currently fit in even the new locks.