Sales Tax on Gold and Silver Sales

Starting in 2019, I found an unwelcome change in my online purchases of gold and sliver. When getting to the payment portion of the order, I found that a sales tax for my state was levied. I went to my two favorite online sites and found both attempted to levy the tax. I then went to my local coin store, and found they also were charging sales tax to buy silver American Eagles. Am I stuck with this, or is there a way to work around my government charging me for purchasing real money with fiat?