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This really sounds like a homework assignment. It would be far better for you to read the chapter and understand the underlying issues and problems that to simply get hand-fed answers that aren't necessarily looking at the issues the way your textbook or instructor want you to see them.

Jackson was an ambitious, prejudiced military man with too much power and not enough empathy.

The Indians had very little political support at that time. Congress, Senate, White House, and military leaders were land greedy and had no understanding of the indian philosophy of life and land ownership.

The rest of your questions you can read your history books and form your own opinions. I won't hand feed you any more.

Needless to say, I think the Cherokee and all other tribal relocations were criminal, and a huge black eye to our history as bad as the incarceration of the Japanese after the US was bombed.