Oh yeah, I am not denying Holden's influence in 2007 gold medal game. But without AK Russia would have never won any medals in international competitions.
Citizenship rules in most European countries are quite lax, thus decent but not great foreign players who never played for their home country have great chance to shine in international competitions while playing for their new "homeland". McCaleb, Kelati, Rice, Holden, Diener, Kaman would have never made team USA roster, thus I am totally ok with them playing for their new countries - improves overall quality of Eurobasket a lot.