By "decent Americans" you mean leftists, yes? They also want open borders, mass migration, globalization, men in girls' showers and genital mutilation of children, correct?
That why you want, yes?
I've had a Krungsri Mee Tae Dai immigration account for years without issue. And generally, there is no waiting for the letter and whatnot at the Chiang Wattana Immigration branch.
For anything over ~US$10K coming from the US I think swift is the cheapest option.
Unless something has changed, I do not believe there is a limit on how much you can receive in your Thai account. My US bank limits my online swift transfers out to US$100K per day.