Monaco Visa is doing it wrong. As well as people who assume or insist that all US citizen are barred from ICO participation. It's actually not true that ALL US citizens are barred. Wealthy people are not. You can apply to he an accredited securities investor if you have money. One of the requirements is that you have an annual income of $200,000USD or more. That's it.
Basically in its barebones, just like the rest of Americans financial system, it limits the options of poor people (or not wealthy people in this case to be more accurate).
Just like having a minimum deposit on checking accounts to prevent fees is bizzaringly anti poor. (Most national banks require $5000USD or more in single or combined accounts to not receive a fee, or have direct deposits from an employer, which itself has to be above a certain amount to not incur fees). Banks are horrible. They are the one institution that relies on consumer accounts to be able to have money to invest/divest to grow their own wealth. Basically they charge you to lend them money. I wish I could do that. Give me $10 bucks and because it's only $10, you owe me $1 a month because I took it.
Anyway, back to the original comment. The SEC only bars non accredited people from investing in securities (which it sees ICOs as, and in many ways they are). If you have money, you can just file to be accredited and you can invest in ICOs till your eyes bleed. Anyone can get accredited, you just need to have money.