The constitution doesn't prohibit the deportation of illegal immigrants. It's interesting that you believe the Supreme Court is illegitimate for rightly ruling based on the letter of the law.

If you want it changed, you have 100 ways to advocate for that without declaring one of the greatest American institutions we have as "illegitimate". It's an extreme view, but certainly common in shrinking hyper-left-wing online spaces.

You won't always get your way. That's Democracy.