Why would it? If you have a physical location already, you're passing through sales tax already. Compliance costs are a lookup table and a middleman; if Square promises to provide tax compliance to all merchant accounts, Paypal, Visa, Venmo and everyone else would have to do the same. Alaska, Florida, Nevada, South Dakota, Texas, Washington and Wyoming have no income tax. Their infrastructure is paid for by sales tax. Their local brick'n'mortars are being punished by not only maintaining a retail location but by having to charge customers a premium; when I buy computer stuff yer damn skippy I buy Newegg rather than Amazon because it's 11% cheaper. Repeat times everything you buy.I think that's just going to hurt small businesses with physical nexus in one state, who do some e-commerce in the rest of the country.
If you're going to go down the road of citing online sales tax rates, consider choosing a reference that is kept up to date such as Avalara's tax rate data. As far as buying from online merchants / marketplaces to avoid sales tax, those days are coming to a close as a result of the June, 2018 South Dakota v. Wayfair decision allowing states to tax remote sales.