It takes a lot to get people to really care about wars fought on foreign soil. I mean, how many tried to stop the war in Iraq in 2003? And that was without the threat of fines or jail for speaking up.
You want to look like a weirdo? Just tell your friends how worried you are about the war in Yemen, and how evil you think it is that USA is supporting Saudi Arabia. Most people will put you in the crazy conspiracy theories bucket.
The only reason people are so concerned about Ukraine is because it's all over the media and they're told they must be very opposed to it and very concerned. A week without this in the news, it'll be wiped out from their memories.