It is poorly phrased.

a pro-Immigration and Customs Enforcement (ICE) and anti-Muslim hate rally organized by racist Jake Lang

ICE is short for “Immigration and Customs Enforcement”.

The next part is even phrased worse.

Anti-Muslim hate-rally would be a better phrasing, but “hate rally” is a weird phrase already. A good editor would have dropped “hate” from the phrase entirely.

So, rephrased: “a pro-ICE and Anti-Muslim rally”

It’s saying the rally was in favor of ICE and opposed to immigration and Muslims.

Don’t besmirch the good name of pussies like that.