Top female Congressional Dems who have built careers championing abuse victims have kept conspicuously quiet about scandal-scarred lefty Maine Senate candidate Graham Platner — even as Minority Leader Chuck Schumer scrambles to contain the damage before the party loses its shot to win the chamber this fall. Lefty warrior Rep. Alexandria Ocasio-Cortez (D-Queens/Bronx) — who once revealed she was a survivor of sex assault — had nothing to say about married Platner’s alleged physical abuse of