it absolutely is not easily scammed at all.

every single piece of paper is numbered and tracked. (tickets and stubbs, basically). all counting is done by multiple people and watched by anyone who wants. political parties are banned from voting premises.

even better: early voting, in person, up to a week or two before. no crowds.

errors happen about 1 in 1,000,000 with a maximum of a couple hundred, and are caught immediately.

there is no scamming. all of the USA's voting problems are self-created.