Seriously, that block party protest took hours to set up. There was plenty of time for a counter protest to assemble. Are we all going to let our democracy be disposed of by thugs who will take us all out one by one? Their intent was to threaten and intimidate anyone who might vote against a Democrat, and we let them do it. It must have been terrifying for that man in that small house surrounded by that large crowd. He may also have had children or elderly family members to protect. There won't be another Trump sign up in all of Milwaukee County after this. They won.
It appears there are a lot of Californians who are currently donating to the Wisconsin Dem. Party (per fec.gov).