None of this surprises me.
Jaffe's always been a loudmouth who loves yelling ridiculous, controversial nonsense to get his point across. Back in the days of Twisted Metal and God of War (early-mid 2000s) this type of behavior was somewhat more accepted by the liberal community, whereas conservatives were heavily represented by evangelicals, who scoffed at most forms of entertainment, particularly video games.
The situation is different today. the alt-right / modern conservative movement loves being loud and offensive and they've wholly embraced modern entertainment. Progressives have evolved to a place where we prioritize the treatment of our fellow man over the love of entertainment and loud, controversial bullshit is rarely tolerated, especially at the expense of minority groups.
So yeah, defending someone like Milo, a man full of hate and damaging statements to many wonderful groups of people, is going to set reasonable people off. And if this actually surprises you, maybe, just maybe, it's time to accept that there's a new group of monsters that closely aligns with the type of person you've always been .