I'm not going to go off on a tangent on a discussion on Taiwan, but I don't believe none of your assertions is grounded on reality. Ukraine is doing magnificently on the battlefield, specially given Russia planned their invasion to be a 3-day event with frontline soldiers packing parade uniforms and riot gear and Russian generals booking restaurants in Kiev in advance.

To attest to Ukraine's prowess, Russia's ruling regime is now afraid their defeat spells the collapse of Russia and consequently it's fragmentation.

In the meantime, the west already lined up a massive plan to rebuild Ukraine, not to mention it's already in the process of joining the EU. There are countries who had a far less favourable postwar setting which rebounded quite well.

If Taiwan has any lesson to take from Ukraine, that lesson is that fighting for its independence pays off.