How to educate trump loving boomers

I live with my grandpa out of necessity. He’s been a trump supporter since I was a child, voted for him in every election possible and refuses to listen to anything I say that poorly reflects on trumps policies or character. To him, all news is biased against trump, anyone who says anything bad about trump is just spreading propaganda and refuses to listen to even independent journalists because “they just hate trump” I’m at a loss. I’ll go up to him to beg him to open his eyes about the racism, sexism and ethnic cleansing overtaking this country and his only response is “trump wouldn’t do that! Your news is wrong.” He won’t even pick up his phone to look at what trump himself is saying about his evil plans. I won’t give up though because fascism will not win this time. It’s our job to educate those who refuse to open their eyes to the atrocities being committed but I’m so frustrated that they voted for this man but refuse to acknowledge what he’s doing.