Conversation
This is a program with overwhelming bipartisan support - passed by voice vote in many of its renewals, including in Trump's first term - which costs very little and saves mindboggling numbers of people. And someone very dearly wants it dead.
It seems straightforward to me that conservatives mostly don't care about poor people dying in other countries. It's not clear why it's surprising that they wouldn't want to fund this. How much more evidence do you need that conservatism as an ideological framework is just bad?