forcing them to choose between voting against an antisemitism resolution so Republicans can slam them as being antisemitic and anti-Israel
The majority of Americans dont support whats going on in Israel. So its not much of a box to be in. https://news.gallup.com/poll/657404/less-half-sympathetic-toward-israelis.aspx
What the dem congressman as a group and individually risk is campaign contributions from AIPAC. This has always been about bribes from foreign lobbyists. They arent trapped in any box they dont want to be in. ITs like saying your cat is trapped in a box. They love that box.