One Nation Working Together Rally - The 'catholic' Connection

Did you know that there were some 'catholic' groups that 'partnered'/"Endorsing Organizations" with the One Nation Working Together Rally? 

***Correction*** there's one 'Catholic' group - Friends of the Poor...the other listed groups 'tout' 'Catholic' membership!  And fyi....JustFaith joined Pax Christi in a joint partnership.
 No, you wouldn't know that right now, because the One Nation Working Together Rally - "Endorsing Organizations"/'Partner List' was 'edited'/scrubbed. (The list has been shortened)  Ah!  But, hey, it's not completely 'srubbed' - look here - cached.

Note: these are "Endorsing Organizations"-
Sojourners
PaxChristi USA
Pax Christi (Baltimore)
Friends of the Poor
Interfaith Worker Justice

QUESTION #1: Why are these people joinging other organizations that promote and support Communism? HUH?!

QUESTION #2: When did it become 'ok' to support such Communist Groups?

DO YOU HAVE ANY QUESTIONS TOO?