You will still have to disclose the arrests, and provide court records.
Yes, "they" understand that people make mistakes, but they are also free to decide to not give you a visa because we don't need someone who makes these kind of mistakes in the US.
And I'm glad that you feel like your sentence isn't that much, but the crimes really are a big deal. When you are asked about the crimes during a visa interview, your attitude won't help. It's a serious matter, and you'll have to take it seriously.