In June of 2018 the Supreme Court of the United States (SCOTUS) overturned the Quill Commerce Law ina5-4 decision, the South Dakota VS Wayfair case. SCOTUS decided that the previous ruling under Quill created an "uneven tax system".(Supreme Court,South Dakota vs Wayfair, Inc,June 21, 2018,currently 45 states have their own "nexus" or "use" laws to govern taxation of online business.While Amazon now collects sales tax in most states it still manages to evade sales tax due to additional loopholes in paying taxes.

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Questions

1. Was the 2018 Supreme Court decision to now make these online vendors charge sales tax Justifiable or not Why?

2. Now that Amazon does collect sales tax in most states, what other loopholes has Amazon found to evade other taxes?