Question.
Were another large-scale terror attack to occur in the US, and the perpetrators were Arabs on a visitor Visa, there would be more bipartisan support for a blanket ban entry for all people from these nations. Would you endorse that? Or would you maintain the position - like you are now - that it prejudices against all Muslims?
Is the issue here that such a ban is unethical and therefore unacceptable in any circumstance, or is it the suspicion that this is only the beginning of something greater by an administration filled with far-right members?
There are many reasons to be against this ban and it's hard to speculate on an event you give no real details on.
The ban stokes Islamic fear with no real basis in reality. As Guilliani said, it started with being a Muslim ban and then was basically the closest legal thing we could get away with. The rhetoric that leads up to something like this can be dangerous in and of itself. We need to work with countries that are primarily Muslim. We also need to show people that we are not at war with Islam and instead terrorists.
The ban doesn't actually do anything to help national security. Including and since 9/11, no one from any of these countries has done anything terror related at all. Even if one person randomly did, then that doesn't really change the math terribly much. Should we look at our process should something happen? Sure, but 1 out of ~800,000 really isn't that much worse than 0 out of ~800,000.
The ban itself ruins our moral standing and our foreign relations with allies who are taking refugees from Syria and other countries.
The ban weakens our relationship with crucial allies in the field, like translators and other fighters in Iraq, etc, who counted on being able to escape a country where they will be targeted for helping us.
The ban causes reactions from other nations that could put us strategically in jeopardy, like Iran and Iraq banning us in return. We may need to go into those areas and now we have hostilities.
In addition to being bad policy, the ban itself was insanely poorly implemented and caused a lot of chaos.
There's just a lot of to take into account without knowing what exact situation your'e talking about. Most of these things wouldn't suddenly become ok if one action happened tomorrow from an affected country. Or it wouldn't be suddenly ok if the country list included Saudi Arabia. A good administration needs to take all of these factors into account, not just scared hicks in the US. In order to keep people safe our standing in the world matters.