There is no verifiable evidence that millions of people are canceling their Paramount+ subscriptions specifically to give more financial support to PBS and NPR.
Millions are making the “financial decision” to cancel their Paramount+ subscriptions and give more to PBS and NPR.

FactVerify
Source: factverify.com
Key Evidence
Paramount+ cancellations have occurred but are not documented at a 'millions' scale nor linked to supporting PBS/NPR.
theguardian.comtheguardian.comWriters’ union urges investigation into Paramount move to cancel Colbert show Public media funding cuts are well-documented but unrelated to consumer subscription choices.
axios.comaxios.comCongress votes to strip more than $1 billion in funding for NPR, PBS
wdbo.comwdbo.comDid money or politics cause Colbert cancellation? Either way, the economics are...
What the Evidence Shows
The claim consists of two linked assertions: first, that millions are canceling Paramount+ subscriptions, and second, that this action is motivated by a financial decision to support PBS and NPR instead. Available sources confirm that Paramount+ has experienced some cancellations, including notable events like the cancellation of the Stephen Colbert show, which was described as a financial decision by Paramount Global's CEO.
However, there is no credible data or reporting indicating that these cancellations number in the millions or that they are driven by a desire to redirect funds to public broadcasters such as PBS and NPR. Public media funding has recently faced significant federal cuts,axios.comaxios.comCongress votes to strip more than $1 billion in funding for NPR, PBS
wdbo.comwdbo.comDid money or politics cause Colbert cancellation? Either way, the economics are...
deadline.comdeadline.comHow Public Media Lost The Federal Funding Battle, And What Happens Next To... but this political context does not translate into documented consumer behavior of mass subscription cancellations in favor of increased donations or support for PBS and NPR.
Social media discussionstheguardian.comtheguardian.comWriters’ union urges investigation into Paramount move to cancel Colbert show show some individual cancellations but do not provide evidence of a widespread movement. Thus, while both phenomena, Paramount+ cancellations and funding challenges for PBS/NPR, exist independently, the causal link and scale implied by the claim lack substantiation. Without reliable data on subscriber numbers or motivations, the claim remains unverified.