The Market, Not Governments, Should Facilitate Trade and Cooperation
Trade happens despite institutions like the WTO, not because of them. Governments create tariffs, regulations, and barriers that hinder free exchange.
A libertarian would reject managed trade agreements and instead support true free trade, meaning unilateral elimination of all trade barriers without reliance on international treaties.
Abolish all international faux economics organizations rather than reforming them. Also abolish the EU and all Global Goverment organizations like the UN or WEF/WHO et cetera.