@blatham,
Not sure what point you are trying to make other than everything that happens in America is a sign of racism.
You seem to be suggesting that Obama's arrival in the White House, caused a significant number of Americans who had previously felt that gun control was more important than protecting the 2nd Amendment changed their minds.
On what basis might that have been the case:
1) They were all afraid that marauding gangs of angry negroes would soon take to the streets all over America?
2) That as an obvious would-be Communist tyrant, it was feared Obama would declare martial law and put tanks and troops in the street?
3) Longtime gun control advocates decided it was time to arm themselves so they could participate in an insurrection to remove our first black president from the White House?