It only has to be sold as a necessity and patriotic demand, to Trump's base. And those people bought Trump - clearly selling them stuff is no problem.
Especially, foreign wars.
The Iraq War was sold as success to those people (until Obama screwed it up), likewise the Afghanistan War, the Vietnam War (until the liberals cut and ran), the invasion of Grenada and Panama, and so forth. All the wars of the US. The only US war they list as a failure was the Civil War, because they lost it.
This is, of course, a point. But don't forget that some points have changed:
1.) Trump does not control the media. Instead, the enemies of Trump control the media. This is essential if you want to sell your own war as a success. See #729, a classical example of a military action which is, I would guess, in no way different from many others like the Obama drone wars. But with unfriendly media it looks like "another seriously botched military adventure".
2.) It is quite predictable that the US will simply and openly loose a war against Iran. In the same way and for similar reasons they have lost the Vietnam war: Russia will support Iran, but you cannot attack Russia in retaliation because this would lead to the Big Nuclear War. Between Russia and Iran you have not much, essentially nothing to prevent smuggling weapons (Caspian Sea, Russian ally Armenia, Shia Aserbaidshan, former Soviet republic Turkmenistan), so there is no chance to block delivery of high quality air defense weapons. Or of missiles able to shoot aircraft carriers as well as airbases. And the US without air superiority far away from the homeland is nothing.
3.) Where do you want to put the base for the boots on the ground? Iraq is Shia, so you will have to face Iran-supported boots on the ground already during the preparation time. Same in Afghanistan - mostly Sunni, but enough Shia to fight a war already during the preparation time. Saudi Arabia is already at war with the Houthis (Shia), which somehow manage to "find" ballistic rockets to attack even Riad. Turkey? Hm, not completely impossible, but you have to do a lot for this, starting with extradicting Gülen (think about the liberal media reaction). Pakistan? Hm, also not completely impossible. But see
http://blogs.rediff.com/mkbhadrakumar/2017/02/12/india-expects-trump-to-punish-pakistan/
4.) The main powerful anti-Iranian force in the US is the Israel lobby. But it will be easy to explain Israel that it is not a good idea to start a real war against Iran. Think about some Calibre missiles in Lebanon formally owned by Hizbollah.
but it is the whole point of the protest to push the prospect of revolution as being very likely if the protestors are ignored.
This is what I said. Protests make sense if they have the power to escalate. But who has to be afraid of escalation toward a civil war?
Think about the question who will escalate, who fill fight, and who will be the enemy for those ready to fight. On the one side, you have the police. The American police is happy to escalate. Every European is naturally shocked seeing how US police behaves in everyday completely peaceful situations. If something looks like a riot, they will be happy to fight this, they may even provoke riots, and black lives will not matter much.
Who will react or escalate on the other side? Liberal snowflakes? I doubt. I have a simple guess: The blacks. And white lives will not matter much for them too. So, if the situation escalates, you probably end up in a race war. A war with a predictable winner, of white race, and openly fascist. What I reject today as iceaura and Tiassa insulting the political enemy will easily become reality. All you need to obtain real fascism is escalation.
Learn the lessons of the Ukraine Maidan. At the begin it was a peaceful mass demonstration, more or less civilized, pro-European, against police violence (which was faked, but that's irrelevant here). Then it escalated, and the leading figures became fascists. Then they took power, and the escalation continued, up to a civil war, which was, from Ukrainian side, openly fascist, and clearly nationalistic from the other side too.
Think also about how easy it is to escalate today. How much money you need to buy a black criminal gang to make a video where they cut the head of a white boy or girl?
Think also about the cultural background one needs to prevent escalation in mass demonstrations. Lenin has joked about Germans buying platform tickets before taking a train station during a revolution. With some truth. In our own peaceful revolution 1989 the demonstrations started always after the end of the working hours. I have seen the 1. Mai riots in Berlin. The rioting power background here were the Turks, even if there were also a lot of German left anarchists and extremists. But this is once a year, since 1987, and the police has time to prepare, so that they were strong enough, act strongly when necessary, and also became, with time, better in deescalating techniques. Does America have such a culture to prevent escalations?