The problem is not Dims vs Repub as both are guilty. It is globalist vs nationalism. The problems with illegals started decades ago which is why Ronald Rayguns had to give amnesty to the illegals, a move he said would NEVER happen again. The "open borders" started before Obozo and was much publicized under Bush 43 who was tight with the Koch bros.
ALEC Exposed: The Koch Connection | The Nation
Helped by Koch Industries' lobbying efforts, one of the first measures George W. Bush signed into law as governor of Texas was an ALEC model bill giving corporations immunity from penalties if …
https://www.thenation.com/article/alec-exposed-koch-connection/