Piracy: ꜱᴀɪʟ ᴛʜᴇ ʜɪɢʜ ꜱᴇᴀꜱ

Of course any article can be biased, but this one has cited sources, at least. It would take further digging to determine if those sources are credible.

https://libcom.org/article/starvation-army-twelve-reasons-reject-salvation-army

In my opinion and based on my past reading on the subject, the simple fact that it’s a religious organization is enough to dissuade me from giving them anything. It is no small statistic that religious organizations are corrupt, hypocritical, expect obedience over tolerance, anti-union, anti-LGBTQ, ultra-conservative, and generally support the notion that people must be submissive to their authority.

I’ll continue to donate to secular organizations that do genuine good.

Off the top of my head, I can only think of primary sources. Would need to dive into some academic tools to find sufficient sources for Wikipedia's requirements. I'll make a note to do so, when I get the time to do so.

Greenway suggests that the Wobblies stumbled upon this modus operandi as a means of combating the street bands of the Salvation Army and the Volunteers of America, who frequently would drown out Wobbly speakers in a "cacophony of cornets and tamborines." One enterprising IWW organizer, wishing to combat the forces of obscurantist "pie in the sky" theology, "retired long enough to organize a brass band of his own.

Denisoff, R. S. (1970). The Religious Roots of the American Song of Persuasion. Western Folklore, 29(3), 175. doi:10.2307/1498356

Not OP, but I found this: https://en.wikipedia.org/wiki/The_Preacher_and_the_Slave