They're not saying the treaty must be honored. They're saying, unlike the many other treaties that were explicitly invalidated by laws passed, these ones were n

They're not saying the treaty must be honored. They're saying, unlike the many other treaties that were explicitly invalidated by laws passed, these ones were never really directly addressed so they must de facto still stand. Also, no where near 50% of the US was ever granted in treaties. The vast majority was simply taken militarily without compromise.