Dude, again, MS didn't take away Banjo Kazooie. Nintendo let Rare go and Microsoft picked them up due to the talent of the studio. You can blame Nintendo for being stupid and not renewing their contract. Rare owned the rights to all their characters and brought over all of their non Nintendo owned IPs with them.

Anyway, imitation is the greatest form of flattery. Its called business, you have to keep up with your rivals to stay in it. Shouldn't it be good to see some competition in the gaming industry?