Sharing your work without cost to people who need it is pretty solidly left. But it certainly isn’t red vs blue, not least because party political colors vary by country and in the US, neither refers to a left-wing party, and in most countries red aligns with left.

why is there no switch to enable type checking at runtime?

Have you got problems this would solve? I’ve done a lot of type annotated Python at scale and I can’t think of an example.

Edit: given nobody in their right mind allows code that’s not checker clean.

Reminds me how American English uses the verb “rent” for both sides of the transaction. If someone says “I rent this apartment”, you can only tell what they mean from context.

In British English, the landlord “lets” an apartment that the tenant “rents”, and that are advertised with signs “To let”.