When you think about the mansion- and yacht-owning millionaire crowd, retired schoolteachers don’t typically leap to mind.

Nevertheless, foes of Washington’s new high-earner income tax are making a pitch to teachers — and other public-sector workers — contending the so-called “millionaires tax” is a threat to their pensions.

In ads and a recent televised debate , supporters of Initiative 645, which aims to repeal the tax, have hyped technical language in the new law that specifies public pensions are not exempt.

In practice, that means little for retired public employees right now.

The tax, due to take effect in 2028, only applies to household income of more than $1 million a year. No one in the state pension system receives even half that.

The state’s highest individual pension payout now is $385,292 a year, according to Adam Torgerson, a spokesperson for the Washington State Department of Retirement Systems . The vast bulk of state retirees get much less.…