If you know a little about virology then you would also know that viruses also usually weakens more and more by generation after generation it involves into as a virus do not have its main goal to kill hosts; but its goal is to spread as much as possible to as many hosts as possible.
Covid-19 has so far also shown the same properties and should therefore be no different. It was way more potent and dangerous when it was set free in China October/November 2019 when people just dropped dead on the streets or fainted for no specific reason (
other than they had got infected of course). I saw a lot of and read lot of it from reports that slipped through the China censorship back then. Now the virus is a lot weaker and doesn't behave like that.
So it follows the same pattern as most pathogens.
I expect it to go away more or less by the end of the third wave as it always has in past recorded pandemics the world has experienced in history of mankind.. We'll see sooner or later if I am right or wrong about that part..
So using Gatling gun to fight imaginary monsters is not very effective and overkill as it might not be the monster we been sold on.