Reagan democrats

My dad was a milkman so I grew up in a blue collar family in a blue collar neighborhood. I was a kid in the 30's and 40's and went to college in the 50's. We were mostly Catholic and the priest would tell the people how to vote and it was simple. Vote democrat. These working people were strong democrats and this continued up through the 60's and 70's. The democratic party was the party of the working people. In 1980 a miracle happened. Many of those people voted for Reagan. They were called Reagan democrats. This same group voted for Obama and then for Trump. Many in the news say these Trump working class voters are racist without accounting for the fact that they voted for Obama. Because of Trump the republican party is now considered the party of the working class. These are non-college educated working people who have suffered from the loss of manufacturing jobs out sourced to China. How they will make out under Biden remains to be seen. Will he tell them like Obama did that those jobs are not coming back or will he attempt to bring them back.