I agree with your comments.
The left wants to convince US Citizens that there is nothing different about Mexicans crossing our borders illegaly, and people being processed through Ellis Island.
It’s rather humorous to see them make this claim, because about everyone knows there is a big difference.
I had some ancestors who were here before the Revolution (I belong to the SAR), and six immigrant ancestors, but only two of them came through Ellis Island. A lot of 19th-century immigrants (such as Irish and Germans) came before Ellis Island was in operation, and many came though ports other than New York.