Direct Answer
Based on the transcript, early Christians would likely hear the claim that political action is “necessary” as a move back toward “worldly domination,” because they “refus[ed] to worship the rulers of the nations” and bore witness to a “trans-territorial eternal kingdom.” The speaker implies our fears would include losing security, influence, and the comfort of calling the nation “ours,” but he presents non-entanglement as honoring Christ’s blood and focusing on God’s strategy.