Old enough to remember there were lots opposing it as well. Just.like the current Gaza war.

Except none of them meaningfully oppose the gaza war. The closest thing to criticism you'll hear from a mainstream source is how Netanyahu personally isn't carrying out the war out humanely enough. Note that this is not actually opposition to the war, since it just calls for a return to the state of slow ethnic cleansing that spawned the war. They oppose the way and rate the settler colonialist ethnostate carries out ethnic cleansing, not the settler colonialist ethnostate whose national project requires ethnic cleansing.

Just as in the Iraq war, nobody was saying "This is bad, and we should leave now, there's a million people protesting it outside" until like 2006, when the plans to leave were already drawn up (a schedule Obama maintained).

There was a million "The war is good, but it's being done poorly" and later on "The war is bad, but we're here and have to carry it out more competently", but the idea of not pursuing the war was so toxic, republicans would accuse democrats of wanting to "cut and run" (in the same way they accuse democrats of being insufficiently supportive of Israel, despite literally going around congress to keep the weapons flowing).