How come when we buy goods from stores and companies that dont pay taxes at the end of the year, but they're still charging the people taxes for their goods?

Criminal enterprise anybody!

Heres an example, AMAZON

Go buy something from Amazon and they will charge you a tax.

Amazon paid $0 in federal income taxes last year, despite significant profits. This marks the second consecutive year the company has reported no federal tax payments.

https://www.americanprogress.org/article/these-19-fortune-100-companies-paid-next-to-nothing-or-nothing-at-all-in-taxes-in-2021/