Comment by Ms-J
This is only about protecting Israel.
From the article:
The review of all visa holders appears to be a significant expansion of what had initially been a process focused mainly on students who have been involved in what the government perceives as pro-Palestinian or anti-Israel activity.
Seems unlikely this will convince anyone that disagrees with Israeli policy that they're wrong. Quite the opposite, I imagine. That can't be good for long term support of Israel by America.