Is anyone actually affected by illegal immigration?

Forgive my ignorance but I honestly don’t know why it’s such a big deal. I mean I get that sometimes they commit crimes but that’s only a few people compared to the millions that live humble lives. I think they pay taxes like everyone else because there’s a tax on everything you buy. Is there some huge underlying issue that I’m missing here?

I just saw a video of what’s happening down in Bakersfield and I’m wondering, what’s the big problem that justifies all this?

I’M NOT TRYING TO GET POLITICAL GUYS I REALLY AM JUST CONFUSED!!!