That's absolutely untrue. Citizens arrested in relation to immigration enforcement were harboring aliens or otherwise obstructing enforcement.
https://www.propublica.org/article/immigration-dhs-american-...
These are not people obstructing or harboring fugitives. They're people who ICE believed "looked foreign" (aka weren't white) and ignored them when they said they were US citizens. They spent days locked up simply because their skin is too brown and they speak with an accent.
It's absolutely disgusting. Educate yourself about what's actually happening out there.