Napoleon's defeat was a structural inevitability not a symbol of strategic failure.
Often the British or Continental perspective in a democratic Europe attempt to posit that Napoleon failed because of his inability to cease warring.
This paints the picture of Napoleon as a warlord who refused peace at every avenue when the reality is simple.
Continental Europe and the British Empire violated or planned to violate every single treaty it made with Revolutionary and Napoleonic France since the Padua Circular.
Any other gesture, including the famous Frankfurt allowance of a reduced Napoleonic France was simply allowing for temporary grace period so they could arm themselves.
Napoleon's ONLY hope for a long-term France in his image was the complete erasure of the Central European nobility.
It was European scheming that created the conditions that made French warring necessary for the survival of Napoleonic France, when the European powers were defeated they were funded and incensed by Britain.
What options were there besides war for Napoleon, peace was attempted, scheming prevailed, marriage was attempted, the meaning voided.
There was no winning, besides the ultimate posthumous dissolution of the nobility via the tide of nationalism caused by the embers lit by revolutionary France.