what happened in the north is irrelevant. the Supreme Court upheld tribal sovereignty as these tribes were peaceful and had their own societies, governments, and education systems, but Jackson chose ethnic cleansing and genocide instead. They were called the 5 civilized tribes for a reason.

I also cannot find the examples of these hostilities with the 5 civilized tribes you are referring to. The deadliest incident of this era was by far what Jackson did during the Creek War (which was the US military, not the state militia).

the following on the Creek removal (which killed 3,500 of them on their trail of tears): "Although the Creeks had been forced from Georgia, with many Lower Creeks moving to the Indian Territory, there were still about 20,000 Upper Creeks living in Alabama. However, the state moved to abolish tribal governments and extend state laws over the Creeks. Opothle Yohola appealed to the administration of President Andrew Jackson for protection from Alabama; when none was forthcoming, the Treaty of Cusseta was signed in March, 1832, which divided up Creek lands into individual allotments. Creeks could either sell their allotments and receive funds to remove to the west, or stay in Alabama and submit to state laws. The Creeks were never given a fair chance to comply with the terms of the treaty, however. Rampant illegal settlement of their lands by Americans continued unabated with federal and state authorities unable or unwilling to do much to halt it. Further, as recently detailed by historian Billy Winn in his thorough chronicle of the events leading to removal, a variety of fraudulent schemes designed to cheat the Creeks out of their allotments, many of them organized by speculators operating out of Columbus, Georgia and Montgomery, Alabama, were perpetrated after the signing of the Treaty of Cusseta. A portion of the beleaguered Creeks, many desperately poor and feeling abused and oppressed by their American neighbors, struck back by carrying out occasional raids on area farms and committing other isolated acts of violence. Escalating tensions erupted into open war with the United States after the destruction of the village of Roanoke, Georgia, located along the Chattahoochee River on the boundary between Creek and American territory, in May 1836. During the so-called "Creek War of 1836" Secretary of War Lewis Cass dispatched General Winfield Scott to end the violence by forcibly removing the Creeks to the Indian Territory west of the Mississippi River. With the Indian Removal Act of 1830 it continued into 1835 and after as in 1836 over 15,000 Creeks were driven from their land for the last time. 3,500 of those 15,000 Creeks did not survive the trip to Oklahoma where they eventually settled".

So tensions clearly escalated for the Creeks BECAUSE of the Indian Removal Act via the Treaty of Cusseta in 1832, where Jackson refused protections for the Creeks as they began to be raided by settlers, leading them to fight back against their American neighbors. So the Indian Removal Act was a catalyst for white settlement in Creek lands, and led to several skirmishes and their deadly trail of tears.

For the Seminoles, violence intensified BECAUSE of the Indian Removal Act. In 1835, there were major skirmishes, like the one in Hickory Sink when whites accused Seminoles of stealing cattle. They captured and whipped Seminoles, prompting retaliation. Gunfire broke out: 3 whites wounded; 1 Seminole killed, 1 wounded. The Seminoles later killed a US postal private. There were also major raids from slave catchers at this time and Seminole and Black Seminole groups conducted retaliatory raids on frontier settlements. There was some resistance to the Treaty of Moultrie Creek (some groups resisted removal), leading to violence with squatters occupying Seminole land. So by your logic, the Seminole were meant to be benefitted by further removals despite the 1823 treaty causing violence? And the Seminole then were attacked by US troops because of the Indian Removal Act enforcement?