Conversation

https://www.ice.gov/webform/ice-tip-form

I specifically advise against flooding the ICE tip form with false reports in order to waste their time sifting through false information.

If you were to do that, which again I think you should not do, you should also NOT do it from a cafe or library so that ICE doesn't know your home IP address, and you should NOT use a hardened browser that reduces the ability for the site to fingerprint you.

That would be illegal, and as we all know the law is the arbiter of morality and going against the law is wrong, even if that law is unjust and hurts your friends and neighbors.