"Abolish ICE" is something I'd stick by. ICE didn't exist before 2002 and it's not as if the country was falling apart. Customs is a reasonable thing to have, but we already have Customs and Border Patrol. There are legitimate reasons you'd want to arrest and deport someone (a decent government might do so for someone wanted on an ICC warrant), but you can have the FBI do that. ICE adds nothing besides the capacity to do deportations at scale, which is a good thing to oppose.