Picard Enterprise-D is no match for a Borg Cube. Hail, a single Cube laid waste a fleet of 39 Federation ships at Wolf 359. At the Battle of Sector 001, even the ship especially designed to combat the Borg (the Defiant-class) got pummelled and would have been destroyed. Even with regenerative shields, ablative armor, upgraded “hero” stats proved worthless against the Borg. Only plot shielding kept it from being destroyed.
Picard ain’t gonna sacrifice the lives of over 1000 crew members just to satisfy some sense of moral superiorty.