Joan have you taken a look at Charity Navigator which evaluates US Charities based on many factors including funding source. 

If not I suggest you do.

The last time I looked Catholic Charities et al in SF was 86% funded by grants not private donations...and that is not an unusual phenomenon.

Across the bay when I worked there about 1/6 of the Charities budget was donated (and I was a major donor) the balance was govt grants United.Way et al....very little, proportionately, was locally "one by one" personalspecifically catholic donations....

This is NOT an unusual situation.

Charities staff are really capable folks but for the most part they are using tax payer dollars from folks who may not agree at all with the Church.AND the Church is getting credit for generosity that is NOT substantively catholic.

Yes there are a few folks who are both catholic, charity donors,and taxpayers. I am one of them...but we are proportionately minuscule. My point!