1. There are literal illegals driving around in California with drivers licenses given to them by the DMV, or did you forget that Indian guy making an illegal U-turn that killed a few people?
2. No, conservative states don't do that. And even if they did, they simply shouldn't, as illegals aren't citizens. And also, if all states did so, it'd still mean blue states would get more seats than they should, as they're the ones with illegal sanctuary cities to protect them from ICE.
Dude, you just have to walk around a blue city to see what's wrong. I'm pretty sure there's an app showing where people saw actual human shit in California. Spoiler alert, the map was so full of dots that you couldn't see the actual shitty city. Not to mention the crime tsunami, and the used needles you can just find on sidewalks.