Even while in the middle of harassing the migrants, the livestreamers could still be heard thanking those who were sending them money via YouTube’s Super Chat function or through other platforms like Venmo and the Christian-aligned crowdfunding site GiveSendGo. In one situation, while Fulfer was shouting at migrants in Arizona telling them to go home, he stopped briefly to call out a supporter who had sent him $50 on Venmo.
I’m not sure why one would expect anything else from a for-profit corporation.
I think that perhaps the bigger issue is that NeoNazis and such are socially acceptable enough to be permitted. That’s a societal issue more than a Google issue. As you point out, if society did not tolerate it and thus it hurt their bottom line, they would remove it.