It's legit over their heads that he was a Democrat for 70 years of his life. They might legit believe he just adopted this way of thinking as soon as he switched parties
That is because they only think at a surface level. D good, R bad. They don't even look at the history of the people they do that with, they just run with what they are told.
In fact, I wonder if it will blow their minds to know that Trump was a Democrat too.
"Trump's political party affiliation has changed numerous times. He registered as a Republican in Manhattan, New York in 1987, switched to the Reform Party in 1999, the
Democratic Party in 2001, and back to the Republican Party in 2009."
He did that as soon as Obama took office.
"Barack Obama's tenure as the 44th president of the United States began with his first inauguration on
January 20, 2009, and ended on January 20, 2017."
So Trump was a racist Democrat who switched parties, when Obama was elected.