If it’s proven that he is a US citizen, then any past problems generated will have been his own fault for not producing evidence.
Also, it will be the system’s fault for not having some mechanism that requires rock-solid proof prior to anyone running for the presidency.
I agree. It's ridiculous that I can't bring shampoo on an airplane, and grandmothers get searched at the airport, but someone can run for president without providing open access to their birth certificate and education records.