I'm pretty sure there is a very small intersection between the group of Americans who would travel internationally and be annoyed by this and the Americans who support policies like this.
Plus, I would not overestimate degrees of separation -- if a friend's granddaughter traveling internationally for a high school trip supplies social account credentials, and those get leaked it is a powerful demonstration of stupid law in action. Having her get a load of humiliating / X-rated junk as a result would I suspect make even a strong supporter rethink his support.