I do, but party affiliation is alot like religion, i.e. most folks vote Dem becase their parents did and that is all they care about.
We believe this fake news at our own cost. My experience is that heavily Hispanic, Black and Asian Chicago suburb swung 55%D 65%R 85%D 87%R.
In the 65%R and 87%R 100% of Hispanics voted R (except 1 Puerto Rican on welfare). In the 85%D 100% of the Hispanics voted D because the R establishment put up establishment Jim Ryan for Governor because he was trying to murder Rolando Cruz.
In the 65%R I got about 20 or 30% of the Black vote. In the 87%R the Black Preacher’s wife got nearly 100% of the Black vote, as well as 100% of the Hispanic vote.
There was only 13% of solid D vote that did not flip. They were mostly divorced and single promiscuous angry women.
The Asian vote was smaller and swung less than the white, Hispanic and Black.
I moved to SE Atlanta. In E Atlanta (NE of me) precints 50-50 New & old residents and 50-50 Black and white (No Hispanics) went 65% for Clinton and a couple months later went 65% for the Republican candidate for mayor.
In knocking door-to-door since 1964 it is flat out fake news that voters don’t swing.
Any effective door-knocker who listens to voters knows this.