That pre-existing legislation (which banned US financing of any UN agency that grants membership to Palestine) was signed by George HW Bush in 1990 and expanded by Bill Clinton in 1994, in both cases passed by Democrat-controlled Houses and Senates. So it's still "both-sidesism," whatever that is.

And for what it's worth I never mentioned nor was thinking about "two sides," just multiple distinct administrations. Partisanship wearies me (and the parties have changed a lot over the last 20-30 years)