Why do people accuse the left of politicizing mass shootings when its their job to create legislature?

I mean there's a very obvious problem with guns, and how easy these mass shooters are able to get them and cause mass damage. It would only make sense that the party that's not bought out by the NRA would try to introduce laws to limit how easy it is for people to get guns. So what kind of nonsense does the right try to accuse Democrats of politicizing the banning of guns when its literally their job to do that?

These brainwash right wing nuts are complete idiots.
Why do people accuse the left of politicizing mass shootings when its their job to create legislature?
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