However opening up an LLC and a bank account is not that easy, when you are from latin america, and receiving the money in a US bank account implies you have to report to the IRS.
Opening an LLC as a sole foreign proprietor is very easy. Not only that, if you dont physically conduct business in the states (as in a developer programming from outside) you dont pay any taxes in America (you still have to file of course). Getting a bank account is also easy with an established LLC, directly with Mercury or indirectly through Stripe.
Report to IRS is not a bug is a feature you have to pay taxes somewhere and there are plenty of non double taxation agreements within the US and Latam.
https://www.llcuniversity.com/irs/how-to-apply-for-ein-witho...