Conservatives do not protest naturally. They work for a living, and have better ways to spend their time, which is why the Tea Party movement was so remarkable. Instead, conservatives act in others ways, rather than just emoting publicly for all to see. In the case of gun control, conservatives outsource their protest to a favorite ally: the National Rifle Association (NRA).
According to the Daily Mail: "Google searches for 'NRA membership' have risen roughly 4,900 per cent since the week before the February 14 shooting, with new members flocking to support the gun owners' rights group." To put that in graphical terms, you can see the massive spike in this image from Google.
It seems that the sickening display put on by CNN after the Parkland shooting had the opposite intended effect, as the "townhall" was supposed to manipulate your emotions against the Second Amendment, yet catalyzed support for their biggest advocates. There are only five million NRA members as of May of 2017, and tens of millions of American gun owners; thanks are in order for the liberals who are closing that gap.