Another consideration is how does this practicality reduce gun violence & who is being targeted by this bill?

Convicted criminals don’t purchase firearms legally and won’t be paying this tax. Rich people can afford the tax and will be minimally impacted. The poor and working class law abiding citizens who seek to exercise their 2nd Amendment right is who really will suffer. This tax contributes to make the acquisition of firearms prohibitively expensive for the economically challenged. Think of it just like a poll tax to vote. The cherry on top is that this tax will be used to further fund gun control measures that work against those people from exercising their rights.