A huge reason for the trend to the GOP that we have seen among Arabs , Asians and Hispanics is probably inevitable. Many are conservative but were democrats simply cause many moved here in the 1990s and associated the good times with Clinton who was a democrat and the bad times with Bush who was a Republican.
So by the Time they became citizens in the mid to late 2000s , they were democrats simply for that reason . Now that there has been 2 democratic presidents post Clinton and a Republican president post Bush that perception no longer applies so they are voting for the party that fits their belief more.
Anecdotally , the vast majority of Clinton - Trump voters I know were always pretty right wing but when I used to ask them why they voted democratic they said “when I moved here times were great under Clinton and the democrats, then Bush and the Republicans came in and ruined it”. By 2019 that really no longer applied and they moved solidly towards the GOP
Biden isn't collapsing did you see the Marist polls and we outvoted Rs in PA 950 to 750 K
Biden isn't blue states and he is making NC competetive and TX S competitive.