Literally none of this is correct. Bonds do not inherently or even typically refer to government securities. And not all government issued debt is AA, for examp

Literally none of this is correct. Bonds do not inherently or even typically refer to government securities. And not all government issued debt is AA, for example Mexico bonds are currently rated BBB+. Junk bonds are speculative rather than investment grade, quite a lot of corporate bonds are investment grade.