In the history of the US, there have been many times when the US has allowed Hispanic immigrants into the country for specific reasons. When government allows them 'in' legally, they are NOT illegals.
The illegal part comes when government changes and tries to make what was legal in the past to suddenly become illegal.
There is a difference with the Biden regime. The difference is the auto-pen... somebody else signing documents for Biden without his authorizing it.
In other words, the immigrants might have been illegal without their or anybody knowing it.
However, once they are 'in', they are as much people of the US as anybody else. They are Americans, and if this isn't taken into account by the authorities, the authorities are the ones who are illegal.

Were those people you call "illegal" working and living in the US before? They were "illegal" but some people had them working and paying their rents, their food?
And now someone starts calling on hate and xenophobia - on a "nativism" in a country where 99% of the actual natives were anihilated up to the last children and pregnant woman by those who now call other "criminals" and "illegals".
Not to forget that part of California and Texas and New Mexico were stolen and taken from Mexico, the Lousiana, Misouri, ... all from the French.
Seems to me that Mexicans are simply living in THEIR land.
Trump should know that real natives in the US did NOT have orange skin and yellow hair.