If India and China respond to the proposed 100% U.S. tariffs by forming a genuine strategic alliance, could that eventually end U.S. global hegemony?

The U.S. Congress has advanced a bipartisan bill proposing 100% tariffs on countries like India and China for buying Russian oil.

If sustained U.S. pressure pushes India and China toward a genuine strategic partnership not necessarily a military alliance, but closer cooperation in trade, technology, finance, and energy could that significantly weaken U.S. global hegemony?

And if Russia eventually became part of that alignment, would a bloc of three nuclear powers with massive populations, resources, manufacturing capacity, and markets be enough to create a multipolar world that rivals U.S. dominance?