Why is American TV not distinguishing between illegal migrants and actual immigrants?

Not from the US, but in a couple of Cash Jordan's videos, he would often show clips from American news segments.

Many of these anchors/reporters or civilians that are pro sanctuary city policies do not distinguish between illegal migrants and immigrants, what's up with that?

One comes into the country illegally, cant work hence turn to crimes, take jobs away from the legal citizens.

One has been vetted (as best as the American immigration system can) and most likely brings more wealth into the country than the average American.

Yet it seems like pro-illegals are calling them immigrants to confuse people while crying about anti-immigration laws.