But which one is a lesser evil?

During my lifetime the US has invaded/bombed and killed thousands [directly or indirectly] in:

1. Afghanistan
2. Iraq
3. Syria
4. Libya
5. Sudan
6. Pakistan

The US has also facilitated a genocide in Palestine through weapon shipments, intelligence sharing, fleet placement and UN vetoes and is now preparing to invade Venezuela.

China has not invaded or bombed any country during my lifetime.

The funny thing about people saying "both countries can be bad" is that they will lose their minds if you tell them "both major parties in the US are bad". Somehow they only accept "lesser-evilism" for themselves but not for others.