is all meshtastic closed source?

Although these “donations” are definitely heavily skewed to the right wing of politics, I would argue its apolitical, big oil is attempting to infest nearly all sides of UK politics:

Labour

Conservative

Reform

Thankfully I couldn’t find any information on the Green Party or the Liberal Democrats.

In summary:

92 percent of Reform UK “donations” are from oil and gas interests, highly polluting industries, and climate science deniers.