It's a bit of a stretch to go from not liking a President's immigration policy to genocide.
ICE are not doing anything they didn't do under Obama and Clinton. The difference is that Trump is in people's faces about it and he has deliberately targeted so called Sanctuary cities run by the Democrats.
The local police are prevented often by law in assisting ICE so Trump swamps the area with federal employees which brings out the protestors and then we have controversial shootings.
If the local police were allowed to support ICE you could reduce the number of agents and hopefully do their job in a much less provocative way.
Personally I find it crazy that states are allowed to pass laws that stop police assisting federal authorities, that employers and landlords are not allowed to ask a person about their immigration status and generally run opposite to the laws as passed by the US congress.
Imagine Khan announcing that London was a sanctuary city and that the Met would no longer enquire about immigration status etc.
