[sixtofour]

1. "Since term limits seem to be a sticking point (how can you get someone to vote for firing themselves?) ..."

Indeed.

2. "... I think that we should have a mandatory retirement age, 65, just like the rest of working class america."

Who's going to be doing all that mandating? As far as I know the only body that could do that is Congress; see your point 1.

And, mandatory retirement "just like the rest of working class America?" Except for regulated safety environments like airline pilot, I'm not aware of any mandate to retire at 65.