Yes, what part of SHALL NOT BE INFRINGED is POTUS not understanding?
Q, please let POTUS know that the Right of the People to keep and bear arms SHALL NOT BE INFRINGED. This is an individual, unalienable right endowed by our Creator. Upping the purchasing age and outlawing bump stocks are clear infringements.
He is also upping the purchasing age - a clear infringement on the right of the person affected.