Depends on when we are talking about the Democratic Party’s position.
In the 1990s and earlier 2000s, elected leaders of the Democrats favored securing the borders, opposed illegal immigration, and opposed the hiring of illegals.
The dem’s narrative has flipped since the days where Harry Reid said:
“If making it easy to be an illegal alien isn’t easy enough, how about offering a reward for being an illegal immigrant?” he asked.
“No sane country would do that, right? Guess again.
Hillary Clinton said:
“I am, you know, adamantly against illegal immigrants,” the then-New York senator said on the John Gambling show, adding: “We’ve got to do more at our borders. And people have to stop employing illegal immigrants.”
So this left, right tact is not a valid measuring stick.
Every government, and every citizen, in every nation should favor strong control over their immigration laws, and control over:
who is allowed to enter their country
who is allowed to avail themselves of taxpayer funded social welfare
and when, how, and who is granted residency status or citizenship.
Everywhere, and everyone should be concerned, no matter their political ideology. Well, except for the Democrats here in the USA, apparently.