That means, everything you do as a long term solution, needs to be approved by executive, legislative and judiciary systems. This is how every healthy Democratic Republic works.

If you have policies made by executive order, it means only executive power have approved them, which is partially an autocratic policy. This is not new, and constantly abused by Democrats and Republicans over the year.

Because USAID was created by Autocratic rule and did not passed by legislative and/or judiciary approval, I think it's fair to be dismissed by any other president, congress or judiciary any time.

If the people think the government should keep growing up and spending lot more tax payer money, sure, but make it approved by the people, not by the president (or prime minister at other countries).