The constant tariff threats and policy reversals create unnecessary market volatility and undermine stable trade relationships between allies. Trump's erratic approach - threatening 50% tariffs one day then granting extensions the next - damages business confidence and makes long-term planning impossible for companies on both sides of the Atlantic. The EU has consistently shown willingness to negotiate in good faith, emphasizing mutual respect over threats, while Trump's confrontational style risks escalating into a damaging trade war that would hurt both economies.