Just because the President did not ban guns via executive order does not mean he is pro-gun. It does not mean there are not gun control and gun ban bills and measures being pushed in congress and various states.
These measures need to be defeated. If you haven’t, write to your representatives in your state legislature, congress, as well as your governor, mayor, the president, and other such people.
These people are politicians, and unless they are in their last term or not very bright, if enough of a backlash is shown against gun control, they will most likely go against it because they want to be re-elected.
You writing them expressing your concerns could mean the difference between them supporting gun control and rejecting it.