My thanks to the mudelf for the response.
Obviously there are many contemporary folksingers who have an appreciable political content to their body of work. The premier example would have to be Ewan MacColl. Among other songs he penned The Ballad of Ho Chi Minh" and "The Ballad of Stalin" for the British Communist Party. But he also produced classics like "the First time ever I saw your face" and "dirty old town". Buffy St Marie, Bob Dylan and Joan Baez also sang political songs.
The British Government through the British council funds opportunities for British "bands" to perform overseas

https://music.britishcouncil.org/resources/uk-music-funding-and-support
The only point I would make is that should an individual/group apply for funding from government then effectively taking the King's shilling has an implicit understanding that they toe the line in items political.
To bite the hand that feeds you without anticipating sanction is clearly living in cuckoo land, and no argument or position is going to change that reality.
In my view it is a bizarre sense of entitlement that in its self comes from a certain postion on the political spectrum.I know this will upset the sensibilities of most here but the truth is that just like Democrats and Republicans there are differing points of view and censoring one side does not make them go away.

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Differing points of view is not the problem, as you well know. We're grownups here and can carry on intelligent discussions. It's the insulting, stalking, badgering, irrelevant asides, changing the subject to be more about the person doing the badgering than staying on topic - all possible when members or guests take it upon themselves to trash a thread or the participants. ---mudelf