According to what a tankie replied to me two years ago on that other site, NASA stopping collaborating with roscosmos was “a godsend” as now they wouldn’t need to be restricted by NASA missions and standards and could really innovate (???) while NASA would be sent two decades back to the drawing board without the russian engines
Uh… NASA and all the other space agencies used Russian rocket engines and sent payloads in Russian rockets just because they were cost-effective, not because technologically more advanced than alternatives