I think one of the greatest problems the USA has created for itself is "career politicians". This is something the founders probably never considered because there was no such thing at the time. Career politicians are the main cause of all the unconstitutional amendments that have been enacted in the 20th century+.
Bringing in career politicains from other countries is not going to help because by &large they would be bringing in even more socialist ideologies that are currently destroying the AMERICAN way of life.